57687490 has 32 divisors (see below), whose sum is σ = 120113280. Its totient is φ = 19538304.

The previous prime is 57687481. The next prime is 57687503. The reversal of 57687490 is 9478675.

It is a happy number.

57687490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57687490.

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, 846 + ... + 10774.

It is an arithmetic number, because the mean of its divisors is an integer number (3753540).

Almost surely, 2^57687490 is an apocalyptic number.

57687490 is an abundant number, since it is smaller than the sum of its proper divisors (62425790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57687490 is a wasteful number, since it uses less digits than its factorization.

57687490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 57687490 is about 7595.2281071736. The cubic root of 57687490 is about 386.3911888750.

The spelling of 57687490 in words is "fifty-seven million, six hundred eighty-seven thousand, four hundred ninety".