629247172 has 24 divisors (see below), whose sum is σ = 1129224600. Its totient is φ = 306627840.

The previous prime is 629247127. The next prime is 629247173. The reversal of 629247172 is 271742926.

It can be written as a sum of positive squares in 4 ways, for example, as 541696 + 628705476 = 736^2 + 25074^2 .

It is not an unprimeable number, because it can be changed into a prime (629247173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252798 + ... + 255274.

It is an arithmetic number, because the mean of its divisors is an integer number (47051025).

Almost surely, 2^629247172 is an apocalyptic number.

It is an amenable number.

629247172 is a deficient number, since it is larger than the sum of its proper divisors (499977428).

629247172 is a wasteful number, since it uses less digits than its factorization.

629247172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071 (or 4069 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 629247172 is about 25084.7996204873. The cubic root of 629247172 is about 856.9202861209.

The spelling of 629247172 in words is "six hundred twenty-nine million, two hundred forty-seven thousand, one hundred seventy-two".