57990973 has 2 divisors, whose sum is σ = 57990974. Its totient is φ = 57990972.

The previous prime is 57990913. The next prime is 57991013. The reversal of 57990973 is 37909975.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30669444 + 27321529 = 5538^2 + 5227^2 .

It is a cyclic number.

It is not a de Polignac number, because 57990973 - 2⁹ = 57990461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57990913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28995486 + 28995487.

It is an arithmetic number, because the mean of its divisors is an integer number (28995487).

Almost surely, 2^57990973 is an apocalyptic number.

It is an amenable number.

57990973 is a deficient number, since it is larger than the sum of its proper divisors (1).

57990973 is an equidigital number, since it uses as much as digits as its factorization.

57990973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 535815, while the sum is 49.

The square root of 57990973 is about 7615.1804312176. The cubic root of 57990973 is about 387.0675811798.

The spelling of 57990973 in words is "fifty-seven million, nine hundred ninety thousand, nine hundred seventy-three".