656966073 has 4 divisors (see below), whose sum is σ = 875954768. Its totient is φ = 437977380.

The previous prime is 656966069. The next prime is 656966077. The reversal of 656966073 is 370669656.

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 an interprime number because it is at equal distance from previous prime (656966069) and next prime (656966077).

It is not a de Polignac number, because 656966073 - 2² = 656966069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656966077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109494343 + ... + 109494348.

It is an arithmetic number, because the mean of its divisors is an integer number (218988692).

Almost surely, 2^656966073 is an apocalyptic number.

It is an amenable number.

656966073 is a deficient number, since it is larger than the sum of its proper divisors (218988695).

656966073 is a wasteful number, since it uses less digits than its factorization.

656966073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218988694.

The product of its (nonzero) digits is 1224720, while the sum is 48.

The square root of 656966073 is about 25631.3494182417. The cubic root of 656966073 is about 869.3226211004.

The spelling of 656966073 in words is "six hundred fifty-six million, nine hundred sixty-six thousand, seventy-three".