90898497 has 8 divisors (see below), whose sum is σ = 134664480. Its totient is φ = 60598980.

The previous prime is 90898481. The next prime is 90898513. The reversal of 90898497 is 79489809.

It is an interprime number because it is at equal distance from previous prime (90898481) and next prime (90898513).

It is not a de Polignac number, because 90898497 - 2⁴ = 90898481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90898477) 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, 1683279 + ... + 1683332.

It is an arithmetic number, because the mean of its divisors is an integer number (16833060).

Almost surely, 2^90898497 is an apocalyptic number.

It is an amenable number.

90898497 is a deficient number, since it is larger than the sum of its proper divisors (43765983).

90898497 is a wasteful number, since it uses less digits than its factorization.

90898497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366620 (or 3366614 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 90898497 is about 9534.0703269905. The cubic root of 90898497 is about 449.6268462105.

The spelling of 90898497 in words is "ninety million, eight hundred ninety-eight thousand, four hundred ninety-seven".