90995438 has 16 divisors (see below), whose sum is σ = 137742336. Its totient is φ = 45083640.

The previous prime is 90995413. The next prime is 90995459. The reversal of 90995438 is 83459909.

It is a junction number, because it is equal to n+sod(n) for n = 90995392 and 90995401.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 161345 + ... + 161907.

It is an arithmetic number, because the mean of its divisors is an integer number (8608896).

Almost surely, 2^90995438 is an apocalyptic number.

90995438 is a deficient number, since it is larger than the sum of its proper divisors (46746898).

90995438 is a wasteful number, since it uses less digits than its factorization.

90995438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 90995438 is about 9539.1528974013. The cubic root of 90995438 is about 449.7866280617.

The spelling of 90995438 in words is "ninety million, nine hundred ninety-five thousand, four hundred thirty-eight".