57628717 has 4 divisors (see below), whose sum is σ = 57882816. Its totient is φ = 57374620.

The previous prime is 57628699. The next prime is 57628723. The reversal of 57628717 is 71782675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57628717 - 2¹⁹ = 57104429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57628787) 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, 126709 + ... + 127162.

It is an arithmetic number, because the mean of its divisors is an integer number (14470704).

Almost surely, 2^57628717 is an apocalyptic number.

It is an amenable number.

57628717 is a deficient number, since it is larger than the sum of its proper divisors (254099).

57628717 is a wasteful number, since it uses less digits than its factorization.

57628717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254098.

The product of its digits is 164640, while the sum is 43.

The square root of 57628717 is about 7591.3580471481. The cubic root of 57628717 is about 386.2599236391.

The spelling of 57628717 in words is "fifty-seven million, six hundred twenty-eight thousand, seven hundred seventeen".