656452963 has 4 divisors (see below), whose sum is σ = 657769000. Its totient is φ = 655136928.

The previous prime is 656452889. The next prime is 656452987. The reversal of 656452963 is 369254656.

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-656452963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656452463) 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, 657270 + ... + 658267.

It is an arithmetic number, because the mean of its divisors is an integer number (164442250).

Almost surely, 2^656452963 is an apocalyptic number.

656452963 is a deficient number, since it is larger than the sum of its proper divisors (1316037).

656452963 is a wasteful number, since it uses less digits than its factorization.

656452963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316036.

The product of its digits is 1166400, while the sum is 46.

The square root of 656452963 is about 25621.3380407816. The cubic root of 656452963 is about 869.0962398980.

It can be divided in two parts, 65 and 6452963, that added together give a triangular number (6453028 = T₃₅₉₂).

The spelling of 656452963 in words is "six hundred fifty-six million, four hundred fifty-two thousand, nine hundred sixty-three".