629745297 has 32 divisors (see below), whose sum is σ = 902109312. Its totient is φ = 389382144.

The previous prime is 629745289. The next prime is 629745299. The reversal of 629745297 is 792547926.

It is not a de Polignac number, because 629745297 - 2³ = 629745289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (629745299) 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, 1348258 + ... + 1348724.

It is an arithmetic number, because the mean of its divisors is an integer number (28190916).

Almost surely, 2^629745297 is an apocalyptic number.

It is an amenable number.

629745297 is a deficient number, since it is larger than the sum of its proper divisors (272364015).

629745297 is a wasteful number, since it uses less digits than its factorization.

629745297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 1905120, while the sum is 51.

The square root of 629745297 is about 25094.7264778877. The cubic root of 629745297 is about 857.1463450533.

The spelling of 629745297 in words is "six hundred twenty-nine million, seven hundred forty-five thousand, two hundred ninety-seven".