90693698 has 8 divisors (see below), whose sum is σ = 136165692. Its totient is φ = 45305136.

The previous prime is 90693683. The next prime is 90693703. The reversal of 90693698 is 89639609.

It can be written as a sum of positive squares in 2 ways, for example, as 90573289 + 120409 = 9517^2 + 347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18065 + ... + 22532.

Almost surely, 2^90693698 is an apocalyptic number.

90693698 is a deficient number, since it is larger than the sum of its proper divisors (45471994).

90693698 is a wasteful number, since it uses less digits than its factorization.

90693698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41716.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 90693698 is about 9523.3238945234. The cubic root of 90693698 is about 449.2889148027.

The spelling of 90693698 in words is "ninety million, six hundred ninety-three thousand, six hundred ninety-eight".