57620873 has 2 divisors, whose sum is σ = 57620874. Its totient is φ = 57620872.

The previous prime is 57620839. The next prime is 57620879. The reversal of 57620873 is 37802675.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29019769 + 28601104 = 5387^2 + 5348^2 .

It is a cyclic number.

It is not a de Polignac number, because 57620873 - 2⁸ = 57620617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (57620879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28810436 + 28810437.

It is an arithmetic number, because the mean of its divisors is an integer number (28810437).

Almost surely, 2^57620873 is an apocalyptic number.

It is an amenable number.

57620873 is a deficient number, since it is larger than the sum of its proper divisors (1).

57620873 is an equidigital number, since it uses as much as digits as its factorization.

57620873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 57620873 is about 7590.8413894640. The cubic root of 57620873 is about 386.2423978842.

The spelling of 57620873 in words is "fifty-seven million, six hundred twenty thousand, eight hundred seventy-three".