90393249 has 16 divisors (see below), whose sum is σ = 123125184. Its totient is φ = 58968000.

The previous prime is 90393239. The next prime is 90393269. The reversal of 90393249 is 94239309.

It is not a de Polignac number, because 90393249 - 2⁵ = 90393217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90393239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111054 + ... + 111864.

It is an arithmetic number, because the mean of its divisors is an integer number (7695324).

Almost surely, 2^90393249 is an apocalyptic number.

It is an amenable number.

90393249 is a deficient number, since it is larger than the sum of its proper divisors (32731935).

90393249 is a wasteful number, since it uses less digits than its factorization.

90393249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 90393249 is about 9507.5364316946. The cubic root of 90393249 is about 448.7922329466.

The spelling of 90393249 in words is "ninety million, three hundred ninety-three thousand, two hundred forty-nine".