67794090 has 128 divisors (see below), whose sum is σ = 210954240. Its totient is φ = 13540608.

The previous prime is 67794073. The next prime is 67794107. The reversal of 67794090 is 9049776.

It is an interprime number because it is at equal distance from previous prime (67794073) and next prime (67794107).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51217 + ... + 52523.

It is an arithmetic number, because the mean of its divisors is an integer number (1648080).

Almost surely, 2^67794090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67794090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105477120).

67794090 is an abundant number, since it is smaller than the sum of its proper divisors (143160150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67794090 is a wasteful number, since it uses less digits than its factorization.

67794090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 67794090 is about 8233.7166577433. The cubic root of 67794090 is about 407.7531065865.

It can be divided in two parts, 677940 and 90, that added together give a triangular number (678030 = T₁₁₆₄).

The spelling of 67794090 in words is "sixty-seven million, seven hundred ninety-four thousand, ninety".