90398473 has 8 divisors (see below), whose sum is σ = 99394560. Its totient is φ = 81532080.

The previous prime is 90398467. The next prime is 90398489. The reversal of 90398473 is 37489309.

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 90398473 - 2²¹ = 88301321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90398453) 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, 30958 + ... + 33751.

It is an arithmetic number, because the mean of its divisors is an integer number (12424320).

Almost surely, 2^90398473 is an apocalyptic number.

It is an amenable number.

90398473 is a deficient number, since it is larger than the sum of its proper divisors (8996087).

90398473 is a wasteful number, since it uses less digits than its factorization.

90398473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64847.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 90398473 is about 9507.8111571486. The cubic root of 90398473 is about 448.8008783027.

The spelling of 90398473 in words is "ninety million, three hundred ninety-eight thousand, four hundred seventy-three".