654685332 has 24 divisors (see below), whose sum is σ = 1745827776. Its totient is φ = 187052928.

The previous prime is 654685331. The next prime is 654685349. The reversal of 654685332 is 233586456.

It is a super-2 number, since 2×654685332² = 857225767871900448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654685331) 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, 3896853 + ... + 3897020.

It is an arithmetic number, because the mean of its divisors is an integer number (72742824).

Almost surely, 2^654685332 is an apocalyptic number.

It is an amenable number.

654685332 is an abundant number, since it is smaller than the sum of its proper divisors (1091142444).

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

654685332 is a wasteful number, since it uses less digits than its factorization.

654685332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7793887 (or 7793885 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 654685332 is about 25586.8194975460. The cubic root of 654685332 is about 868.3154668201.

The spelling of 654685332 in words is "six hundred fifty-four million, six hundred eighty-five thousand, three hundred thirty-two".