90534331 has 4 divisors (see below), whose sum is σ = 90878832. Its totient is φ = 90189832.

The previous prime is 90534329. The next prime is 90534343. The reversal of 90534331 is 13343509.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90534331 - 2¹ = 90534329 is a prime.

It is a super-2 number, since 2×90534331² = 16392930179235122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90534331.

It is not an unprimeable number, because it can be changed into a prime (90534391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171856 + ... + 172381.

It is an arithmetic number, because the mean of its divisors is an integer number (22719708).

Almost surely, 2^90534331 is an apocalyptic number.

90534331 is a deficient number, since it is larger than the sum of its proper divisors (344501).

90534331 is a wasteful number, since it uses less digits than its factorization.

90534331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344500.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 90534331 is about 9514.9530214290. The cubic root of 90534331 is about 449.0255969587.

The spelling of 90534331 in words is "ninety million, five hundred thirty-four thousand, three hundred thirty-one".