57493937 has 8 divisors (see below), whose sum is σ = 58271976. Its totient is φ = 56719872.

The previous prime is 57493897. The next prime is 57493939. The reversal of 57493937 is 73939475.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21864976 + 35628961 = 4676^2 + 5969^2 .

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 57493937 - 2⁶ = 57493873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57493891 and 57493900.

It is not an unprimeable number, because it can be changed into a prime (57493939) 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, 37763 + ... + 39255.

It is an arithmetic number, because the mean of its divisors is an integer number (7283997).

Almost surely, 2^57493937 is an apocalyptic number.

It is an amenable number.

57493937 is a deficient number, since it is larger than the sum of its proper divisors (778039).

57493937 is a wasteful number, since it uses less digits than its factorization.

57493937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987.

The product of its digits is 714420, while the sum is 47.

The square root of 57493937 is about 7582.4756511314. The cubic root of 57493937 is about 385.9585649099.

The spelling of 57493937 in words is "fifty-seven million, four hundred ninety-three thousand, nine hundred thirty-seven".