90333687 has 8 divisors (see below), whose sum is σ = 123700336. Its totient is φ = 58594752.

The previous prime is 90333679. The next prime is 90333731. The reversal of 90333687 is 78633309.

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

It is not a de Polignac number, because 90333687 - 2³ = 90333679 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 (90333647) 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, 406798 + ... + 407019.

It is an arithmetic number, because the mean of its divisors is an integer number (15462542).

Almost surely, 2^90333687 is an apocalyptic number.

90333687 is a deficient number, since it is larger than the sum of its proper divisors (33366649).

90333687 is a wasteful number, since it uses less digits than its factorization.

90333687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813857.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 90333687 is about 9504.4035583513. The cubic root of 90333687 is about 448.6936384291.

It can be divided in two parts, 9033368 and 7, that added together give a triangular number (9033375 = T₄₂₅₀).

The spelling of 90333687 in words is "ninety million, three hundred thirty-three thousand, six hundred eighty-seven".