68676537 has 4 divisors (see below), whose sum is σ = 91568720. Its totient is φ = 45784356.

The previous prime is 68676529. The next prime is 68676557. The reversal of 68676537 is 73567686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68676537 - 2³ = 68676529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68676557) 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, 11446087 + ... + 11446092.

It is an arithmetic number, because the mean of its divisors is an integer number (22892180).

Almost surely, 2^68676537 is an apocalyptic number.

It is an amenable number.

68676537 is a deficient number, since it is larger than the sum of its proper divisors (22892183).

68676537 is a wasteful number, since it uses less digits than its factorization.

68676537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22892182.

The product of its digits is 1270080, while the sum is 48.

The square root of 68676537 is about 8287.1308062562. The cubic root of 68676537 is about 409.5146686339.

The spelling of 68676537 in words is "sixty-eight million, six hundred seventy-six thousand, five hundred thirty-seven".