90984491 has 8 divisors (see below), whose sum is σ = 98066640. Its totient is φ = 83914272.

The previous prime is 90984469. The next prime is 90984533. The reversal of 90984491 is 19448909.

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

It is not a de Polignac number, because 90984491 - 2⁶ = 90984427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90984461) 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, 18800 + ... + 23138.

It is an arithmetic number, because the mean of its divisors is an integer number (12258330).

Almost surely, 2^90984491 is an apocalyptic number.

90984491 is a deficient number, since it is larger than the sum of its proper divisors (7082149).

90984491 is a wasteful number, since it uses less digits than its factorization.

90984491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5965.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 90984491 is about 9538.5790870548. The cubic root of 90984491 is about 449.7685904846.

The spelling of 90984491 in words is "ninety million, nine hundred eighty-four thousand, four hundred ninety-one".