629039631 has 32 divisors (see below), whose sum is σ = 994222080. Its totient is φ = 349509600.

The previous prime is 629039611. The next prime is 629039639. The reversal of 629039631 is 136930926.

It is not a de Polignac number, because 629039631 - 2⁹ = 629039119 is a prime.

It is a super-2 number, since 2×629039631² = 791381714737232322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 629039631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629039639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3256 + ... + 35618.

It is an arithmetic number, because the mean of its divisors is an integer number (31069440).

Almost surely, 2^629039631 is an apocalyptic number.

629039631 is a deficient number, since it is larger than the sum of its proper divisors (365182449).

629039631 is a wasteful number, since it uses less digits than its factorization.

629039631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32427.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 629039631 is about 25080.6624912501. The cubic root of 629039631 is about 856.8260647204.

The spelling of 629039631 in words is "six hundred twenty-nine million, thirty-nine thousand, six hundred thirty-one".