57798221 has 8 divisors (see below), whose sum is σ = 62375040. Its totient is φ = 53240112.

The previous prime is 57798197. The next prime is 57798263. The reversal of 57798221 is 12289775.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57798221 - 2¹⁴ = 57781837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57798271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120 + ... + 10958.

It is an arithmetic number, because the mean of its divisors is an integer number (7796880).

Almost surely, 2^57798221 is an apocalyptic number.

It is an amenable number.

57798221 is a deficient number, since it is larger than the sum of its proper divisors (4576819).

57798221 is a wasteful number, since it uses less digits than its factorization.

57798221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9355.

The product of its digits is 70560, while the sum is 41.

The square root of 57798221 is about 7602.5141236304. The cubic root of 57798221 is about 386.6382565168.

The spelling of 57798221 in words is "fifty-seven million, seven hundred ninety-eight thousand, two hundred twenty-one".