629990545 has 16 divisors (see below), whose sum is σ = 761156352. Its totient is φ = 500561280.

The previous prime is 629990509. The next prime is 629990551. The reversal of 629990545 is 545099926.

It is not a de Polignac number, because 629990545 - 2²⁹ = 93119633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 609349 + ... + 610381.

It is an arithmetic number, because the mean of its divisors is an integer number (47572272).

Almost surely, 2^629990545 is an apocalyptic number.

It is an amenable number.

629990545 is a deficient number, since it is larger than the sum of its proper divisors (131165807).

629990545 is a wasteful number, since it uses less digits than its factorization.

629990545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752.

The product of its (nonzero) digits is 874800, while the sum is 49.

The square root of 629990545 is about 25099.6124472072. The cubic root of 629990545 is about 857.2575996326.

The spelling of 629990545 in words is "six hundred twenty-nine million, nine hundred ninety thousand, five hundred forty-five".