57634247 has 4 divisors (see below), whose sum is σ = 62873736. Its totient is φ = 52394760.

The previous prime is 57634217. The next prime is 57634249. The reversal of 57634247 is 74243675.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57634247 - 2⁶ = 57634183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57634247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57634249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2619728 + ... + 2619749.

It is an arithmetic number, because the mean of its divisors is an integer number (15718434).

Almost surely, 2^57634247 is an apocalyptic number.

57634247 is a deficient number, since it is larger than the sum of its proper divisors (5239489).

57634247 is a wasteful number, since it uses less digits than its factorization.

57634247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239488.

The product of its digits is 141120, while the sum is 38.

The square root of 57634247 is about 7591.7222683657. The cubic root of 57634247 is about 386.2722782959.

The spelling of 57634247 in words is "fifty-seven million, six hundred thirty-four thousand, two hundred forty-seven".