67690895 has 4 divisors (see below), whose sum is σ = 81229080. Its totient is φ = 54152712.

The previous prime is 67690859. The next prime is 67690919. The reversal of 67690895 is 59809676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67690895 - 2¹⁴ = 67674511 is a prime.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6769085 + ... + 6769094.

It is an arithmetic number, because the mean of its divisors is an integer number (20307270).

Almost surely, 2^67690895 is an apocalyptic number.

67690895 is a deficient number, since it is larger than the sum of its proper divisors (13538185).

67690895 is a wasteful number, since it uses less digits than its factorization.

67690895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13538184.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 67690895 is about 8227.4476601191. The cubic root of 67690895 is about 407.5461099290.

The spelling of 67690895 in words is "sixty-seven million, six hundred ninety thousand, eight hundred ninety-five".