84175090 has 16 divisors (see below), whose sum is σ = 152004888. Its totient is φ = 33561216.

The previous prime is 84175067. The next prime is 84175097. The reversal of 84175090 is 9057148.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62394201 + 21780889 = 7899^2 + 4667^2 .

It is not an unprimeable number, because it can be changed into a prime (84175097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10317 + ... + 16576.

Almost surely, 2^84175090 is an apocalyptic number.

84175090 is a deficient number, since it is larger than the sum of its proper divisors (67829798).

84175090 is a wasteful number, since it uses less digits than its factorization.

84175090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27213.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 84175090 is about 9174.6983601642. The cubic root of 84175090 is about 438.2559924973.

The spelling of 84175090 in words is "eighty-four million, one hundred seventy-five thousand, ninety".