68604379 has 4 divisors (see below), whose sum is σ = 68777584. Its totient is φ = 68431176.

The previous prime is 68604373. The next prime is 68604391. The reversal of 68604379 is 97340686.

It is a happy number.

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 68604379 - 2⁷ = 68604251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68604373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86007 + ... + 86800.

It is an arithmetic number, because the mean of its divisors is an integer number (17194396).

Almost surely, 2^68604379 is an apocalyptic number.

68604379 is a deficient number, since it is larger than the sum of its proper divisors (173205).

68604379 is a wasteful number, since it uses less digits than its factorization.

68604379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173204.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 68604379 is about 8282.7760442982. The cubic root of 68604379 is about 409.3711935547.

The spelling of 68604379 in words is "sixty-eight million, six hundred four thousand, three hundred seventy-nine".