57798621 has 12 divisors (see below), whose sum is σ = 83664672. Its totient is φ = 38450376.

The previous prime is 57798619. The next prime is 57798649. The reversal of 57798621 is 12689775.

It is not a de Polignac number, because 57798621 - 2¹ = 57798619 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57798121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2211 + ... + 10976.

It is an arithmetic number, because the mean of its divisors is an integer number (6972056).

Almost surely, 2^57798621 is an apocalyptic number.

It is an amenable number.

57798621 is a deficient number, since it is larger than the sum of its proper divisors (25866051).

57798621 is a wasteful number, since it uses less digits than its factorization.

57798621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13680 (or 13677 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 57798621 is about 7602.5404306718. The cubic root of 57798621 is about 386.6391484413.

It can be divided in two parts, 5779 and 8621, that added together give a square (14400 = 120²).

The spelling of 57798621 in words is "fifty-seven million, seven hundred ninety-eight thousand, six hundred twenty-one".