57443961 has 8 divisors (see below), whose sum is σ = 79062784. Its totient is φ = 37060560.

The previous prime is 57443929. The next prime is 57443989. The reversal of 57443961 is 16934475.

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

It is not a de Polignac number, because 57443961 - 2⁵ = 57443929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57443261) 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, 308746 + ... + 308931.

It is an arithmetic number, because the mean of its divisors is an integer number (9882848).

Almost surely, 2^57443961 is an apocalyptic number.

It is an amenable number.

57443961 is a deficient number, since it is larger than the sum of its proper divisors (21618823).

57443961 is a wasteful number, since it uses less digits than its factorization.

57443961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617711.

The product of its digits is 90720, while the sum is 39.

The square root of 57443961 is about 7579.1794410741. The cubic root of 57443961 is about 385.8467023509.

The spelling of 57443961 in words is "fifty-seven million, four hundred forty-three thousand, nine hundred sixty-one".