90200249 has 8 divisors (see below), whose sum is σ = 95597568. Its totient is φ = 84813120.

The previous prime is 90200233. The next prime is 90200261. The reversal of 90200249 is 94200209.

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 90200249 - 2⁴ = 90200233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90200219) 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, 23204 + ... + 26810.

It is an arithmetic number, because the mean of its divisors is an integer number (11949696).

Almost surely, 2^90200249 is an apocalyptic number.

It is an amenable number.

90200249 is a deficient number, since it is larger than the sum of its proper divisors (5397319).

90200249 is a wasteful number, since it uses less digits than its factorization.

90200249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5095.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 90200249 is about 9497.3811653529. The cubic root of 90200249 is about 448.4725976463.

The spelling of 90200249 in words is "ninety million, two hundred thousand, two hundred forty-nine".