68700786 has 64 divisors (see below), whose sum is σ = 175979520. Its totient is φ = 17357760.

The previous prime is 68700781. The next prime is 68700809.

68700786 is nontrivially palindromic in base 10.

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

It is not an unprimeable number, because it can be changed into a prime (68700781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15085 + ... + 19103.

It is an arithmetic number, because the mean of its divisors is an integer number (2749680).

Almost surely, 2^68700786 is an apocalyptic number.

68700786 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68700786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87989760).

68700786 is an abundant number, since it is smaller than the sum of its proper divisors (107278734).

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

68700786 is a wasteful number, since it uses less digits than its factorization.

68700786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 68700786 is about 8288.5937287335. The cubic root of 68700786 is about 409.5628614767.

The spelling of 68700786 in words is "sixty-eight million, seven hundred thousand, seven hundred eighty-six".