84274557 has 16 divisors (see below), whose sum is σ = 121168320. Its totient is φ = 51926400.

The previous prime is 84274537. The next prime is 84274573. The reversal of 84274557 is 75547248.

It is not a de Polignac number, because 84274557 - 2⁸ = 84274301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84274537) 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, 15694 + ... + 20367.

It is an arithmetic number, because the mean of its divisors is an integer number (7573020).

Almost surely, 2^84274557 is an apocalyptic number.

It is an amenable number.

84274557 is a deficient number, since it is larger than the sum of its proper divisors (36893763).

84274557 is a wasteful number, since it uses less digits than its factorization.

84274557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36124.

The product of its digits is 313600, while the sum is 42.

The square root of 84274557 is about 9180.1174829084. The cubic root of 84274557 is about 438.4285488900.

The spelling of 84274557 in words is "eighty-four million, two hundred seventy-four thousand, five hundred fifty-seven".