90940319 has 4 divisors (see below), whose sum is σ = 90961944. Its totient is φ = 90918696.

The previous prime is 90940307. The next prime is 90940357. The reversal of 90940319 is 91304909.

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 90940319 - 2⁴ = 90940303 is a prime.

It is a super-2 number, since 2×90940319² = 16540283239643522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90945319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237 + ... + 13670.

It is an arithmetic number, because the mean of its divisors is an integer number (22740486).

Almost surely, 2^90940319 is an apocalyptic number.

90940319 is a deficient number, since it is larger than the sum of its proper divisors (21625).

90940319 is a wasteful number, since it uses less digits than its factorization.

90940319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21624.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 90940319 is about 9536.2633667491. The cubic root of 90940319 is about 449.6957927512.

The spelling of 90940319 in words is "ninety million, nine hundred forty thousand, three hundred nineteen".