654632933 has 4 divisors (see below), whose sum is σ = 656611008. Its totient is φ = 652654860.

The previous prime is 654632917. The next prime is 654632977. The reversal of 654632933 is 339236456.

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 654632933 - 2⁴ = 654632917 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 (654632833) 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, 988541 + ... + 989202.

It is an arithmetic number, because the mean of its divisors is an integer number (164152752).

Almost surely, 2^654632933 is an apocalyptic number.

It is an amenable number.

654632933 is a deficient number, since it is larger than the sum of its proper divisors (1978075).

654632933 is a wasteful number, since it uses less digits than its factorization.

654632933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978074.

The product of its digits is 349920, while the sum is 41.

The square root of 654632933 is about 25585.7955318962. The cubic root of 654632933 is about 868.2923004357.

The spelling of 654632933 in words is "six hundred fifty-four million, six hundred thirty-two thousand, nine hundred thirty-three".