84052257 has 16 divisors (see below), whose sum is σ = 118272000. Its totient is φ = 52948944.

The previous prime is 84052249. The next prime is 84052259. The reversal of 84052257 is 75225048.

It is not a de Polignac number, because 84052257 - 2³ = 84052249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84052259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23344 + ... + 26702.

It is an arithmetic number, because the mean of its divisors is an integer number (7392000).

Almost surely, 2^84052257 is an apocalyptic number.

It is an amenable number.

84052257 is a deficient number, since it is larger than the sum of its proper divisors (34219743).

84052257 is a wasteful number, since it uses less digits than its factorization.

84052257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 84052257 is about 9168.0017997380. The cubic root of 84052257 is about 438.0427128338.

Subtracting from 84052257 its sum of digits (33), we obtain a square (84052224 = 9168²).

The spelling of 84052257 in words is "eighty-four million, fifty-two thousand, two hundred fifty-seven".