90016915 has 8 divisors (see below), whose sum is σ = 108100368. Its totient is φ = 71960160.

The previous prime is 90016897. The next prime is 90016919. The reversal of 90016915 is 51961009.

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

It is not a de Polignac number, because 90016915 - 2¹⁷ = 89885843 is a prime.

It is a super-3 number, since 3×90016915³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90016919) 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, 1705 + ... + 13525.

It is an arithmetic number, because the mean of its divisors is an integer number (13512546).

Almost surely, 2^90016915 is an apocalyptic number.

90016915 is a deficient number, since it is larger than the sum of its proper divisors (18083453).

90016915 is a wasteful number, since it uses less digits than its factorization.

90016915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13349.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 90016915 is about 9487.7244373980. The cubic root of 90016915 is about 448.1685480679.

The spelling of 90016915 in words is "ninety million, sixteen thousand, nine hundred fifteen".