629509387 has 8 divisors (see below), whose sum is σ = 713614160. Its totient is φ = 550501920.

The previous prime is 629509373. The next prime is 629509393. The reversal of 629509387 is 783905926.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 629509387 - 2⁷ = 629509259 is a prime.

It is a super-2 number, since 2×629509387² = 792564136642231538, 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 629509387.

It is not an unprimeable number, because it can be changed into a prime (629509357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274064 + ... + 1274557.

It is an arithmetic number, because the mean of its divisors is an integer number (89201770).

Almost surely, 2^629509387 is an apocalyptic number.

629509387 is a deficient number, since it is larger than the sum of its proper divisors (84104773).

629509387 is a wasteful number, since it uses less digits than its factorization.

629509387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548653.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 629509387 is about 25090.0256476553. The cubic root of 629509387 is about 857.0392993156.

The spelling of 629509387 in words is "six hundred twenty-nine million, five hundred nine thousand, three hundred eighty-seven".