654472628 has 6 divisors (see below), whose sum is σ = 1145327106. Its totient is φ = 327236312.

The previous prime is 654472601. The next prime is 654472633. The reversal of 654472628 is 826274456.

It can be written as a sum of positive squares in only one way, i.e., 653415844 + 1056784 = 25562^2 + 1028^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81809075 + ... + 81809082.

It is an arithmetic number, because the mean of its divisors is an integer number (190887851).

Almost surely, 2^654472628 is an apocalyptic number.

It is an amenable number.

654472628 is a deficient number, since it is larger than the sum of its proper divisors (490854478).

654472628 is a wasteful number, since it uses less digits than its factorization.

654472628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163618161 (or 163618159 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 654472628 is about 25582.6626448460. The cubic root of 654472628 is about 868.2214195123.

The spelling of 654472628 in words is "six hundred fifty-four million, four hundred seventy-two thousand, six hundred twenty-eight".