68601731 has 4 divisors (see below), whose sum is σ = 74838264. Its totient is φ = 62365200.

The previous prime is 68601707. The next prime is 68601751. The reversal of 68601731 is 13710686.

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 68601731 - 2¹⁸ = 68339587 is a prime.

It is a super-2 number, since 2×68601731² = 9412394992392722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68601751) 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, 3118250 + ... + 3118271.

It is an arithmetic number, because the mean of its divisors is an integer number (18709566).

Almost surely, 2^68601731 is an apocalyptic number.

68601731 is a deficient number, since it is larger than the sum of its proper divisors (6236533).

68601731 is a wasteful number, since it uses less digits than its factorization.

68601731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6236532.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 68601731 is about 8282.6161929671. The cubic root of 68601731 is about 409.3659265009.

The spelling of 68601731 in words is "sixty-eight million, six hundred one thousand, seven hundred thirty-one".