57813793 has 4 divisors (see below), whose sum is σ = 57843268. Its totient is φ = 57784320.

The previous prime is 57813779. The next prime is 57813799. The reversal of 57813793 is 39731875.

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 11478544 + 46335249 = 3388^2 + 6807^2 .

It is a cyclic number.

It is not a de Polignac number, because 57813793 - 2¹⁷ = 57682721 is a prime.

It is a super-2 number, since 2×57813793² = 6684869322093698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57813799) 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, 11568 + ... + 15793.

It is an arithmetic number, because the mean of its divisors is an integer number (14460817).

Almost surely, 2^57813793 is an apocalyptic number.

It is an amenable number.

57813793 is a deficient number, since it is larger than the sum of its proper divisors (29475).

57813793 is a wasteful number, since it uses less digits than its factorization.

57813793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29474.

The product of its digits is 158760, while the sum is 43.

The square root of 57813793 is about 7603.5381895536. The cubic root of 57813793 is about 386.6729760993.

The spelling of 57813793 in words is "fifty-seven million, eight hundred thirteen thousand, seven hundred ninety-three".