1057704239 has 4 divisors (see below), whose sum is σ = 1082302056. Its totient is φ = 1033106424.

The previous prime is 1057704223. The next prime is 1057704247. The reversal of 1057704239 is 9324077501.

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 1057704239 - 2⁴ = 1057704223 is a prime.

It is a super-2 number, since 2×1057704239² = 2237476514397138242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057704209) 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 3 ways as a sum of consecutive naturals, for example, 12298844 + ... + 12298929.

It is an arithmetic number, because the mean of its divisors is an integer number (270575514).

Almost surely, 2^1057704239 is an apocalyptic number.

1057704239 is a deficient number, since it is larger than the sum of its proper divisors (24597817).

1057704239 is an equidigital number, since it uses as much as digits as its factorization.

1057704239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24597816.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 1057704239 is about 32522.3652122659. The cubic root of 1057704239 is about 1018.8761937143.

The spelling of 1057704239 in words is "one billion, fifty-seven million, seven hundred four thousand, two hundred thirty-nine".