629959964 has 6 divisors (see below), whose sum is σ = 1102429944. Its totient is φ = 314979980.

The previous prime is 629959943. The next prime is 629959987. The reversal of 629959964 is 469959926.

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, 78744992 + ... + 78744999.

It is an arithmetic number, because the mean of its divisors is an integer number (183738324).

Almost surely, 2^629959964 is an apocalyptic number.

It is an amenable number.

629959964 is a deficient number, since it is larger than the sum of its proper divisors (472469980).

629959964 is a wasteful number, since it uses less digits than its factorization.

629959964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157489995 (or 157489993 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 59.

The square root of 629959964 is about 25099.0032471411. The cubic root of 629959964 is about 857.2437284091.

The spelling of 629959964 in words is "six hundred twenty-nine million, nine hundred fifty-nine thousand, nine hundred sixty-four".