57649943 has 8 divisors (see below), whose sum is σ = 62143536. Its totient is φ = 53164800.

The previous prime is 57649909. The next prime is 57649951. The reversal of 57649943 is 34994675.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57649943 - 2⁸ = 57649687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57649973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25988 + ... + 28118.

It is an arithmetic number, because the mean of its divisors is an integer number (7767942).

Almost surely, 2^57649943 is an apocalyptic number.

57649943 is a deficient number, since it is larger than the sum of its proper divisors (4493593).

57649943 is a wasteful number, since it uses less digits than its factorization.

57649943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225.

The product of its digits is 816480, while the sum is 47.

The square root of 57649943 is about 7592.7559555144. The cubic root of 57649943 is about 386.3073406630.

The spelling of 57649943 in words is "fifty-seven million, six hundred forty-nine thousand, nine hundred forty-three".