84522090 has 32 divisors (see below), whose sum is σ = 207573696. Its totient is φ = 22014720.

The previous prime is 84522083. The next prime is 84522103. The reversal of 84522090 is 9022548.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31471 + ... + 34050.

It is an arithmetic number, because the mean of its divisors is an integer number (6486678).

Almost surely, 2^84522090 is an apocalyptic number.

84522090 is an abundant number, since it is smaller than the sum of its proper divisors (123051606).

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

84522090 is a wasteful number, since it uses less digits than its factorization.

84522090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65574.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 84522090 is about 9193.5896145086. The cubic root of 84522090 is about 438.8573831527.

The spelling of 84522090 in words is "eighty-four million, five hundred twenty-two thousand, ninety".