629643297 has 16 divisors (see below), whose sum is σ = 892207872. Its totient is φ = 393603840.

The previous prime is 629643283. The next prime is 629643307. The reversal of 629643297 is 792346926.

It is not a de Polignac number, because 629643297 - 2¹² = 629639201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (629643277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8958 + ... + 36599.

It is an arithmetic number, because the mean of its divisors is an integer number (55762992).

Almost surely, 2^629643297 is an apocalyptic number.

It is an amenable number.

629643297 is a deficient number, since it is larger than the sum of its proper divisors (262564575).

629643297 is a wasteful number, since it uses less digits than its factorization.

629643297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45848.

The product of its digits is 979776, while the sum is 48.

The square root of 629643297 is about 25092.6940960910. The cubic root of 629643297 is about 857.1000651534.

The spelling of 629643297 in words is "six hundred twenty-nine million, six hundred forty-three thousand, two hundred ninety-seven".