90784995 has 24 divisors (see below), whose sum is σ = 168972624. Its totient is φ = 41501376.

The previous prime is 90784987. The next prime is 90784999. The reversal of 90784995 is 59948709.

It is a happy number.

It is not a de Polignac number, because 90784995 - 2³ = 90784987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90784999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61024 + ... + 62493.

It is an arithmetic number, because the mean of its divisors is an integer number (7040526).

Almost surely, 2^90784995 is an apocalyptic number.

90784995 is a deficient number, since it is larger than the sum of its proper divisors (78187629).

90784995 is a wasteful number, since it uses less digits than its factorization.

90784995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123539 (or 123532 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 90784995 is about 9528.1160257419. The cubic root of 90784995 is about 449.4396234509.

The spelling of 90784995 in words is "ninety million, seven hundred eighty-four thousand, nine hundred ninety-five".