68937769 has 16 divisors (see below), whose sum is σ = 73995264. Its totient is φ = 64108800.

The previous prime is 68937763. The next prime is 68937773. The reversal of 68937769 is 96773986.

It is a cyclic number.

It is not a de Polignac number, because 68937769 - 2³ = 68937761 is a prime.

It is a super-2 number, since 2×68937769² = 9504831989394722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68937761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92412 + ... + 93154.

It is an arithmetic number, because the mean of its divisors is an integer number (4624704).

Almost surely, 2^68937769 is an apocalyptic number.

It is an amenable number.

68937769 is a deficient number, since it is larger than the sum of its proper divisors (5057495).

68937769 is a wasteful number, since it uses less digits than its factorization.

68937769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888.

The product of its digits is 3429216, while the sum is 55.

The square root of 68937769 is about 8302.8771519275. The cubic root of 68937769 is about 410.0332493361.

The spelling of 68937769 in words is "sixty-eight million, nine hundred thirty-seven thousand, seven hundred sixty-nine".