68672665 has 8 divisors (see below), whose sum is σ = 82453248. Its totient is φ = 54907440.

The previous prime is 68672647. The next prime is 68672671. The reversal of 68672665 is 56627686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68672665 - 2¹⁷ = 68541593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11800 + ... + 16630.

It is an arithmetic number, because the mean of its divisors is an integer number (10306656).

Almost surely, 2^68672665 is an apocalyptic number.

It is an amenable number.

68672665 is a deficient number, since it is larger than the sum of its proper divisors (13780583).

68672665 is a wasteful number, since it uses less digits than its factorization.

68672665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679.

The product of its digits is 725760, while the sum is 46.

The square root of 68672665 is about 8286.8971877296. The cubic root of 68672665 is about 409.5069723101.

The spelling of 68672665 in words is "sixty-eight million, six hundred seventy-two thousand, six hundred sixty-five".