57982739 has 4 divisors (see below), whose sum is σ = 58439424. Its totient is φ = 57526056.

The previous prime is 57982723. The next prime is 57982751. The reversal of 57982739 is 93728975.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57982739 - 2⁴ = 57982723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57982039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228152 + ... + 228405.

It is an arithmetic number, because the mean of its divisors is an integer number (14609856).

Almost surely, 2^57982739 is an apocalyptic number.

57982739 is a deficient number, since it is larger than the sum of its proper divisors (456685).

57982739 is a wasteful number, since it uses less digits than its factorization.

57982739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456684.

The product of its digits is 952560, while the sum is 50.

The square root of 57982739 is about 7614.6397813685. The cubic root of 57982739 is about 387.0492607117.

The spelling of 57982739 in words is "fifty-seven million, nine hundred eighty-two thousand, seven hundred thirty-nine".