57944987 has 8 divisors (see below), whose sum is σ = 60564000. Its totient is φ = 55367424.

The previous prime is 57944947. The next prime is 57945023. The reversal of 57944987 is 78944975.

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 57944987 - 2¹⁸ = 57682843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57944947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7487 + ... + 13112.

It is an arithmetic number, because the mean of its divisors is an integer number (7570500).

Almost surely, 2^57944987 is an apocalyptic number.

57944987 is a deficient number, since it is larger than the sum of its proper divisors (2619013).

57944987 is a wasteful number, since it uses less digits than its factorization.

57944987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20725.

The product of its digits is 2540160, while the sum is 53.

The square root of 57944987 is about 7612.1604686186. The cubic root of 57944987 is about 386.9652411321.

The spelling of 57944987 in words is "fifty-seven million, nine hundred forty-four thousand, nine hundred eighty-seven".