90388265 has 8 divisors (see below), whose sum is σ = 118326528. Its totient is φ = 65736880.

The previous prime is 90388253. The next prime is 90388307. The reversal of 90388265 is 56288309.

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

It is not a de Polignac number, because 90388265 - 2⁸ = 90388009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821657 + ... + 821766.

It is an arithmetic number, because the mean of its divisors is an integer number (14790816).

Almost surely, 2^90388265 is an apocalyptic number.

It is an amenable number.

90388265 is a deficient number, since it is larger than the sum of its proper divisors (27938263).

90388265 is a wasteful number, since it uses less digits than its factorization.

90388265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643439.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 90388265 is about 9507.2743202245. The cubic root of 90388265 is about 448.7839844634.

The spelling of 90388265 in words is "ninety million, three hundred eighty-eight thousand, two hundred sixty-five".