90335417087 has 4 divisors (see below), whose sum is σ = 90416874840. Its totient is φ = 90253959336.

The previous prime is 90335417059. The next prime is 90335417099. The reversal of 90335417087 is 78071453309.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90335417087 - 2²⁴ = 90318639871 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 (90335417057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40727213 + ... + 40729430.

It is an arithmetic number, because the mean of its divisors is an integer number (22604218710).

Almost surely, 2^90335417087 is an apocalyptic number.

90335417087 is a deficient number, since it is larger than the sum of its proper divisors (81457753).

90335417087 is a wasteful number, since it uses less digits than its factorization.

90335417087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81457752.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 90335417087 in words is "ninety billion, three hundred thirty-five million, four hundred seventeen thousand, eighty-seven".