90885389 has 8 divisors (see below), whose sum is σ = 104628288. Its totient is φ = 77332320.

The previous prime is 90885373. The next prime is 90885409. The reversal of 90885389 is 98358809.

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 90885389 - 2⁴ = 90885373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90885589) 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, 46427 + ... + 48344.

It is an arithmetic number, because the mean of its divisors is an integer number (13078536).

Almost surely, 2^90885389 is an apocalyptic number.

It is an amenable number.

90885389 is a deficient number, since it is larger than the sum of its proper divisors (13742899).

90885389 is a wasteful number, since it uses less digits than its factorization.

90885389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94915.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 90885389 is about 9533.3828728317. The cubic root of 90885389 is about 449.6052323877.

The spelling of 90885389 in words is "ninety million, eight hundred eighty-five thousand, three hundred eighty-nine".