84274090 has 12 divisors (see below), whose sum is σ = 151745634. Its totient is φ = 33698024.

The previous prime is 84274079. The next prime is 84274103. The reversal of 84274090 is 9047248.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 75846681 + 8427409 = 8709^2 + 2903^2 .

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, 27579 + ... + 30481.

Almost surely, 2^84274090 is an apocalyptic number.

84274090 is a deficient number, since it is larger than the sum of its proper divisors (67471544).

84274090 is an frugal number, since it uses more digits than its factorization.

84274090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 2910 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 84274090 is about 9180.0920474688. The cubic root of 84274090 is about 438.4277390508.

The spelling of 84274090 in words is "eighty-four million, two hundred seventy-four thousand, ninety".