57993705 has 96 divisors (see below), whose sum is σ = 130999680. Its totient is φ = 24071040.

The previous prime is 57993703. The next prime is 57993739. The reversal of 57993705 is 50739975.

It is a happy number.

57993705 is a `hidden beast` number, since 579 + 9 + 3 + 70 + 5 = 666.

It is not a de Polignac number, because 57993705 - 2¹ = 57993703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (57993703) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 72367 + ... + 73163.

It is an arithmetic number, because the mean of its divisors is an integer number (1364580).

Almost surely, 2^57993705 is an apocalyptic number.

57993705 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57993705 is an abundant number, since it is smaller than the sum of its proper divisors (73005975).

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

57993705 is a wasteful number, since it uses less digits than its factorization.

57993705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 297675, while the sum is 45.

The square root of 57993705 is about 7615.3598076519. The cubic root of 57993705 is about 387.0736594363.

The spelling of 57993705 in words is "fifty-seven million, nine hundred ninety-three thousand, seven hundred five".