84593090 has 16 divisors (see below), whose sum is σ = 152391672. Its totient is φ = 33809664.

The previous prime is 84593059. The next prime is 84593099. The reversal of 84593090 is 9039548.

It can be written as a sum of positive squares in 4 ways, for example, as 68376361 + 16216729 = 8269^2 + 4027^2 .

It is not an unprimeable number, because it can be changed into a prime (84593099) 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, 13322 + ... + 18618.

Almost surely, 2^84593090 is an apocalyptic number.

84593090 is a deficient number, since it is larger than the sum of its proper divisors (67798582).

84593090 is a wasteful number, since it uses less digits than its factorization.

84593090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 84593090 is about 9197.4501901342. The cubic root of 84593090 is about 438.9802313281.

The spelling of 84593090 in words is "eighty-four million, five hundred ninety-three thousand, ninety".