57070947 has 4 divisors (see below), whose sum is σ = 76094600. Its totient is φ = 38047296.

The previous prime is 57070919. The next prime is 57070973. The reversal of 57070947 is 74907075.

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

It is not a de Polignac number, because 57070947 - 2¹⁶ = 57005411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57070997) 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, 9511822 + ... + 9511827.

It is an arithmetic number, because the mean of its divisors is an integer number (19023650).

Almost surely, 2^57070947 is an apocalyptic number.

57070947 is a deficient number, since it is larger than the sum of its proper divisors (19023653).

57070947 is a wasteful number, since it uses less digits than its factorization.

57070947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19023652.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 57070947 is about 7554.5315539747. The cubic root of 57070947 is about 385.0097192127.

It can be divided in two parts, 570 and 70947, that added together give a palindrome (71517).

The spelling of 57070947 in words is "fifty-seven million, seventy thousand, nine hundred forty-seven".