84274520 has 32 divisors (see below), whose sum is σ = 206856720. Its totient is φ = 30645120.

The previous prime is 84274511. The next prime is 84274529. The reversal of 84274520 is 2547248.

It is an interprime number because it is at equal distance from previous prime (84274511) and next prime (84274529).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84274529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95327 + ... + 96206.

Almost surely, 2^84274520 is an apocalyptic number.

It is an amenable number.

84274520 is an abundant number, since it is smaller than the sum of its proper divisors (122582200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84274520 is a wasteful number, since it uses less digits than its factorization.

84274520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191555 (or 191551 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 84274520 is about 9180.1154676834. The cubic root of 84274520 is about 438.4284847272.

The spelling of 84274520 in words is "eighty-four million, two hundred seventy-four thousand, five hundred twenty".