90854491 has 16 divisors (see below), whose sum is σ = 112045248. Its totient is φ = 71740800.

The previous prime is 90854461. The next prime is 90854497. The reversal of 90854491 is 19445809.

It is a cyclic number.

It is not a de Polignac number, because 90854491 - 2⁷ = 90854363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90854497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85101 + ... + 86161.

It is an arithmetic number, because the mean of its divisors is an integer number (7002828).

Almost surely, 2^90854491 is an apocalyptic number.

90854491 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

90854491 is a deficient number, since it is larger than the sum of its proper divisors (21190757).

90854491 is a wasteful number, since it uses less digits than its factorization.

90854491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 90854491 is about 9531.7622190233. The cubic root of 90854491 is about 449.5542763533.

The spelling of 90854491 in words is "ninety million, eight hundred fifty-four thousand, four hundred ninety-one".