653426904 has 32 divisors (see below), whose sum is σ = 1759227120. Its totient is φ = 201054336.

The previous prime is 653426903. The next prime is 653426911. The reversal of 653426904 is 409624356.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653426903) 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 7 ways as a sum of consecutive naturals, for example, 1046847 + ... + 1047470.

Almost surely, 2^653426904 is an apocalyptic number.

It is an amenable number.

653426904 is an abundant number, since it is smaller than the sum of its proper divisors (1105800216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653426904 is a wasteful number, since it uses less digits than its factorization.

653426904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094339 (or 2094335 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 653426904 is about 25562.2163358344. The cubic root of 653426904 is about 867.7587549035.

The spelling of 653426904 in words is "six hundred fifty-three million, four hundred twenty-six thousand, nine hundred four".