68520677 has 4 divisors (see below), whose sum is σ = 68879616. Its totient is φ = 68161740.

The previous prime is 68520671. The next prime is 68520701. The reversal of 68520677 is 77602586.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 68520677 - 2²² = 64326373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68520671) 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, 179183 + ... + 179564.

It is an arithmetic number, because the mean of its divisors is an integer number (17219904).

Almost surely, 2^68520677 is an apocalyptic number.

It is an amenable number.

68520677 is a deficient number, since it is larger than the sum of its proper divisors (358939).

68520677 is a wasteful number, since it uses less digits than its factorization.

68520677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358938.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 68520677 is about 8277.7217276253. The cubic root of 68520677 is about 409.2046389174.

The spelling of 68520677 in words is "sixty-eight million, five hundred twenty thousand, six hundred seventy-seven".