90398351 has 4 divisors (see below), whose sum is σ = 90424272. Its totient is φ = 90372432.

The previous prime is 90398327. The next prime is 90398353. The reversal of 90398351 is 15389309.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90398351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90398353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6731 + ... + 15036.

It is an arithmetic number, because the mean of its divisors is an integer number (22606068).

Almost surely, 2^90398351 is an apocalyptic number.

90398351 is a deficient number, since it is larger than the sum of its proper divisors (25921).

90398351 is a wasteful number, since it uses less digits than its factorization.

90398351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25920.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 90398351 is about 9507.8047413691. The cubic root of 90398351 is about 448.8006764050.

The spelling of 90398351 in words is "ninety million, three hundred ninety-eight thousand, three hundred fifty-one".