84919400 has 24 divisors (see below), whose sum is σ = 197438070. Its totient is φ = 33967680.

The previous prime is 84919363. The next prime is 84919433. The reversal of 84919400 is 491948.

It can be written as a sum of positive squares in 3 ways, for example, as 41964484 + 42954916 = 6478^2 + 6554^2 .

It is a super-2 number, since 2×84919400² = 14422608992720000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212099 + ... + 212498.

Almost surely, 2^84919400 is an apocalyptic number.

It is an amenable number.

84919400 is an abundant number, since it is smaller than the sum of its proper divisors (112518670).

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

84919400 is a wasteful number, since it uses less digits than its factorization.

84919400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424613 (or 424604 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 84919400 is about 9215.1722718569. The cubic root of 84919400 is about 439.5439489633.

The spelling of 84919400 in words is "eighty-four million, nine hundred nineteen thousand, four hundred".