57290797 has 4 divisors (see below), whose sum is σ = 57709116. Its totient is φ = 56872480.

The previous prime is 57290789. The next prime is 57290809. The reversal of 57290797 is 79709275.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38576521 + 18714276 = 6211^2 + 4326^2 .

It is a cyclic number.

It is not a de Polignac number, because 57290797 - 2³ = 57290789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57290767) 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, 208954 + ... + 209227.

It is an arithmetic number, because the mean of its divisors is an integer number (14427279).

Almost surely, 2^57290797 is an apocalyptic number.

It is an amenable number.

57290797 is a deficient number, since it is larger than the sum of its proper divisors (418319).

57290797 is a wasteful number, since it uses less digits than its factorization.

57290797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418318.

The product of its (nonzero) digits is 277830, while the sum is 46.

The square root of 57290797 is about 7569.0684367365. The cubic root of 57290797 is about 385.5034668113.

The spelling of 57290797 in words is "fifty-seven million, two hundred ninety thousand, seven hundred ninety-seven".