90208299 has 8 divisors (see below), whose sum is σ = 124425360. Its totient is φ = 58065056.

The previous prime is 90208289. The next prime is 90208309. The reversal of 90208299 is 99280209.

It is an interprime number because it is at equal distance from previous prime (90208289) and next prime (90208309).

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 90208299 - 2⁵ = 90208267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90208249) 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, 518352 + ... + 518525.

It is an arithmetic number, because the mean of its divisors is an integer number (15553170).

Almost surely, 2^90208299 is an apocalyptic number.

90208299 is a deficient number, since it is larger than the sum of its proper divisors (34217061).

90208299 is a wasteful number, since it uses less digits than its factorization.

90208299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036909.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 90208299 is about 9497.8049569361. The cubic root of 90208299 is about 448.4859386923.

The spelling of 90208299 in words is "ninety million, two hundred eight thousand, two hundred ninety-nine".