656089627 has 4 divisors (see below), whose sum is σ = 690620680. Its totient is φ = 621558576.

The previous prime is 656089601. The next prime is 656089631. The reversal of 656089627 is 726980656.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656089627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656089327) 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, 17265498 + ... + 17265535.

It is an arithmetic number, because the mean of its divisors is an integer number (172655170).

Almost surely, 2^656089627 is an apocalyptic number.

656089627 is a deficient number, since it is larger than the sum of its proper divisors (34531053).

656089627 is a wasteful number, since it uses less digits than its factorization.

656089627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34531052.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 656089627 is about 25614.2465631921. The cubic root of 656089627 is about 868.9358667787.

The spelling of 656089627 in words is "six hundred fifty-six million, eighty-nine thousand, six hundred twenty-seven".