90398396 has 24 divisors (see below), whose sum is σ = 173225136. Its totient is φ = 40936320.

The previous prime is 90398393. The next prime is 90398419. The reversal of 90398396 is 69389309.

It is a self number, because there is not a number n which added to its sum of digits gives 90398396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90398393) 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, 8480 + ... + 15896.

It is an arithmetic number, because the mean of its divisors is an integer number (7217714).

Almost surely, 2^90398396 is an apocalyptic number.

It is an amenable number.

90398396 is a deficient number, since it is larger than the sum of its proper divisors (82826740).

90398396 is a wasteful number, since it uses less digits than its factorization.

90398396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709 (or 7707 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 90398396 is about 9507.8071078456. The cubic root of 90398396 is about 448.8007508754.

It can be divided in two parts, 903 and 98396, that added together give a palindrome (99299).

The spelling of 90398396 in words is "ninety million, three hundred ninety-eight thousand, three hundred ninety-six".