57648667 has 2 divisors, whose sum is σ = 57648668. Its totient is φ = 57648666.

The previous prime is 57648637. The next prime is 57648677. The reversal of 57648667 is 76684675.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57648667 - 2¹¹ = 57646619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57648667.

It is not a weakly prime, because it can be changed into another prime (57648637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28824333 + 28824334.

It is an arithmetic number, because the mean of its divisors is an integer number (28824334).

Almost surely, 2^57648667 is an apocalyptic number.

57648667 is a deficient number, since it is larger than the sum of its proper divisors (1).

57648667 is an equidigital number, since it uses as much as digits as its factorization.

57648667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 49.

The square root of 57648667 is about 7592.6719275891. The cubic root of 57648667 is about 386.3044905197.

The spelling of 57648667 in words is "fifty-seven million, six hundred forty-eight thousand, six hundred sixty-seven".