90334858 has 4 divisors (see below), whose sum is σ = 135502290. Its totient is φ = 45167428.

The previous prime is 90334831. The next prime is 90334859. The reversal of 90334858 is 85843309.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85843309 = 31 ⋅2769139.

It can be written as a sum of positive squares in only one way, i.e., 74597769 + 15737089 = 8637^2 + 3967^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 90334858.

It is not an unprimeable number, because it can be changed into a prime (90334859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22583713 + ... + 22583716.

Almost surely, 2^90334858 is an apocalyptic number.

90334858 is a deficient number, since it is larger than the sum of its proper divisors (45167432).

90334858 is a wasteful number, since it uses less digits than its factorization.

90334858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45167431.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 90334858 is about 9504.4651611756. The cubic root of 90334858 is about 448.6955772332.

The spelling of 90334858 in words is "ninety million, three hundred thirty-four thousand, eight hundred fifty-eight".