57991629 has 16 divisors (see below), whose sum is σ = 82042880. Its totient is φ = 36333360.

The previous prime is 57991621. The next prime is 57991643. The reversal of 57991629 is 92619975.

It is not a de Polignac number, because 57991629 - 2³ = 57991621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57991621) 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, 3234 + ... + 11244.

It is an arithmetic number, because the mean of its divisors is an integer number (5127680).

Almost surely, 2^57991629 is an apocalyptic number.

It is an amenable number.

57991629 is a deficient number, since it is larger than the sum of its proper divisors (24051251).

57991629 is a wasteful number, since it uses less digits than its factorization.

57991629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8160.

The product of its digits is 306180, while the sum is 48.

The square root of 57991629 is about 7615.2235029577. The cubic root of 57991629 is about 387.0690406907.

The spelling of 57991629 in words is "fifty-seven million, nine hundred ninety-one thousand, six hundred twenty-nine".