629816812 has 12 divisors (see below), whose sum is σ = 1131968320. Its totient is φ = 306397296.

The previous prime is 629816741. The next prime is 629816827. The reversal of 629816812 is 218618926.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2127612 + ... + 2127907.

Almost surely, 2^629816812 is an apocalyptic number.

It is an amenable number.

629816812 is a deficient number, since it is larger than the sum of its proper divisors (502151508).

629816812 is a wasteful number, since it uses less digits than its factorization.

629816812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255560 (or 4255558 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 629816812 is about 25096.1513384025. The cubic root of 629816812 is about 857.1787901814.

The spelling of 629816812 in words is "six hundred twenty-nine million, eight hundred sixteen thousand, eight hundred twelve".