657112423 has 4 divisors (see below), whose sum is σ = 716849928. Its totient is φ = 597374920.

The previous prime is 657112409. The next prime is 657112427. The reversal of 657112423 is 324211756.

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

It is a cyclic number.

It is not a de Polignac number, because 657112423 - 2⁹ = 657111911 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 (657112427) 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, 29868736 + ... + 29868757.

It is an arithmetic number, because the mean of its divisors is an integer number (179212482).

Almost surely, 2^657112423 is an apocalyptic number.

657112423 is a deficient number, since it is larger than the sum of its proper divisors (59737505).

657112423 is a wasteful number, since it uses less digits than its factorization.

657112423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59737504.

The product of its digits is 10080, while the sum is 31.

The square root of 657112423 is about 25634.2041616275. The cubic root of 657112423 is about 869.3871682791.

The spelling of 657112423 in words is "six hundred fifty-seven million, one hundred twelve thousand, four hundred twenty-three".