68959415 has 24 divisors (see below), whose sum is σ = 97721712. Its totient is φ = 46569600.

The previous prime is 68959411. The next prime is 68959433. The reversal of 68959415 is 51495986.

It is a happy number.

It is not a de Polignac number, because 68959415 - 2² = 68959411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68959415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68959411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14315 + ... + 18515.

It is an arithmetic number, because the mean of its divisors is an integer number (4071738).

Almost surely, 2^68959415 is an apocalyptic number.

68959415 is a deficient number, since it is larger than the sum of its proper divisors (28762297).

68959415 is a wasteful number, since it uses less digits than its factorization.

68959415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287 (or 4280 counting only the distinct ones).

The product of its digits is 388800, while the sum is 47.

The square root of 68959415 is about 8304.1805736629. The cubic root of 68959415 is about 410.0761607476.

The spelling of 68959415 in words is "sixty-eight million, nine hundred fifty-nine thousand, four hundred fifteen".