90992449 has 8 divisors (see below), whose sum is σ = 96985728. Its totient is φ = 85070400.

The previous prime is 90992417. The next prime is 90992453. The reversal of 90992449 is 94429909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90992449 - 2⁵ = 90992417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90992399 and 90992408.

It is not an unprimeable number, because it can be changed into a prime (90992849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15157 + ... + 20290.

It is an arithmetic number, because the mean of its divisors is an integer number (12123216).

Almost surely, 2^90992449 is an apocalyptic number.

It is an amenable number.

90992449 is a deficient number, since it is larger than the sum of its proper divisors (5993279).

90992449 is a wasteful number, since it uses less digits than its factorization.

90992449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35615.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 90992449 is about 9538.9962260188. The cubic root of 90992449 is about 449.7817031739.

The spelling of 90992449 in words is "ninety million, nine hundred ninety-two thousand, four hundred forty-nine".