57623647 has 2 divisors, whose sum is σ = 57623648. Its totient is φ = 57623646.

The previous prime is 57623641. The next prime is 57623669. The reversal of 57623647 is 74632675.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57623647 - 2³ = 57623639 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57623641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28811823 + 28811824.

It is an arithmetic number, because the mean of its divisors is an integer number (28811824).

Almost surely, 2^57623647 is an apocalyptic number.

57623647 is a deficient number, since it is larger than the sum of its proper divisors (1).

57623647 is an equidigital number, since it uses as much as digits as its factorization.

57623647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 40.

The square root of 57623647 is about 7591.0241074574. The cubic root of 57623647 is about 386.2485959808.

Subtracting 57623647 from its reverse (74632675), we obtain a triangular number (17009028 = T₅₈₃₂).

It can be divided in two parts, 5762 and 3647, that added together give a square (9409 = 97²).

The spelling of 57623647 in words is "fifty-seven million, six hundred twenty-three thousand, six hundred forty-seven".