654888957 has 4 divisors (see below), whose sum is σ = 873185280. Its totient is φ = 436592636.

The previous prime is 654888947. The next prime is 654888989. The reversal of 654888957 is 759888456.

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 a cyclic number.

It is not a de Polignac number, because 654888957 - 2⁶ = 654888893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654888957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654888917) 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, 109148157 + ... + 109148162.

It is an arithmetic number, because the mean of its divisors is an integer number (218296320).

Almost surely, 2^654888957 is an apocalyptic number.

It is an amenable number.

654888957 is a deficient number, since it is larger than the sum of its proper divisors (218296323).

654888957 is a wasteful number, since it uses less digits than its factorization.

654888957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218296322.

The product of its digits is 19353600, while the sum is 60.

The square root of 654888957 is about 25590.7982876658. The cubic root of 654888957 is about 868.4054807552.

The spelling of 654888957 in words is "six hundred fifty-four million, eight hundred eighty-eight thousand, nine hundred fifty-seven".