57286197 has 20 divisors (see below), whose sum is σ = 90082080. Its totient is φ = 36179784.

The previous prime is 57286193. The next prime is 57286213. The reversal of 57286197 is 79168275.

57286197 is a `hidden beast` number, since 5 + 7 + 28 + 619 + 7 = 666.

It is not a de Polignac number, because 57286197 - 2² = 57286193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57286193) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17073 + ... + 20150.

It is an arithmetic number, because the mean of its divisors is an integer number (4504104).

Almost surely, 2^57286197 is an apocalyptic number.

57286197 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

57286197 is a deficient number, since it is larger than the sum of its proper divisors (32795883).

57286197 is a wasteful number, since it uses less digits than its factorization.

57286197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37254 (or 37245 counting only the distinct ones).

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

The square root of 57286197 is about 7568.7645623312. The cubic root of 57286197 is about 385.4931489040.

The spelling of 57286197 in words is "fifty-seven million, two hundred eighty-six thousand, one hundred ninety-seven".