57643497 has 24 divisors (see below), whose sum is σ = 87280128. Its totient is φ = 36590400.

The previous prime is 57643463. The next prime is 57643507. The reversal of 57643497 is 79434675.

It is not a de Polignac number, because 57643497 - 2⁶ = 57643433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57643457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57672 + ... + 58662.

It is an arithmetic number, because the mean of its divisors is an integer number (3636672).

Almost surely, 2^57643497 is an apocalyptic number.

It is an amenable number.

57643497 is a deficient number, since it is larger than the sum of its proper divisors (29636631).

57643497 is a wasteful number, since it uses less digits than its factorization.

57643497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1298 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 57643497 is about 7592.3314600984. The cubic root of 57643497 is about 386.2929420947.

It can be divided in two parts, 5764 and 3497, that added together give a cube (9261 = 21³).

The spelling of 57643497 in words is "fifty-seven million, six hundred forty-three thousand, four hundred ninety-seven".