423611657 has 8 divisors (see below), whose sum is σ = 484257216. Its totient is φ = 362998512.

The previous prime is 423611651. The next prime is 423611659. The reversal of 423611657 is 756116324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423611657 - 2⁴ = 423611641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423611651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35723 + ... + 46079.

It is an arithmetic number, because the mean of its divisors is an integer number (60532152).

Almost surely, 2^423611657 is an apocalyptic number.

It is an amenable number.

423611657 is a deficient number, since it is larger than the sum of its proper divisors (60645559).

423611657 is a wasteful number, since it uses less digits than its factorization.

423611657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16207.

The product of its digits is 30240, while the sum is 35.

The square root of 423611657 is about 20581.8283201469. The cubic root of 423611657 is about 751.0277211498.

The spelling of 423611657 in words is "four hundred twenty-three million, six hundred eleven thousand, six hundred fifty-seven".