57630407 has 2 divisors, whose sum is σ = 57630408. Its totient is φ = 57630406.

The previous prime is 57630383. The next prime is 57630409. The reversal of 57630407 is 70403675.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57630407 - 2⁶ = 57630343 is a prime.

Together with 57630409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57630409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28815203 + 28815204.

It is an arithmetic number, because the mean of its divisors is an integer number (28815204).

Almost surely, 2^57630407 is an apocalyptic number.

57630407 is a deficient number, since it is larger than the sum of its proper divisors (1).

57630407 is an equidigital number, since it uses as much as digits as its factorization.

57630407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 57630407 is about 7591.4693571139. The cubic root of 57630407 is about 386.2636993776.

The spelling of 57630407 in words is "fifty-seven million, six hundred thirty thousand, four hundred seven".