90917384 has 16 divisors (see below), whose sum is σ = 170621520. Its totient is φ = 45418320.

The previous prime is 90917383. The next prime is 90917401. The reversal of 90917384 is 48371909.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (90917383) 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 3 ways as a sum of consecutive naturals, for example, 5927 + ... + 14729.

It is an arithmetic number, because the mean of its divisors is an integer number (10663845).

Almost surely, 2^90917384 is an apocalyptic number.

It is an amenable number.

90917384 is a deficient number, since it is larger than the sum of its proper divisors (79704136).

90917384 is a wasteful number, since it uses less digits than its factorization.

90917384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100 (or 10096 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 90917384 is about 9535.0607758944. The cubic root of 90917384 is about 449.6579853911.

The spelling of 90917384 in words is "ninety million, nine hundred seventeen thousand, three hundred eighty-four".