90502819 has 8 divisors (see below), whose sum is σ = 99126720. Its totient is φ = 81945000.

The previous prime is 90502801. The next prime is 90502829. The reversal of 90502819 is 91820509.

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 90502819 - 2¹¹ = 90500771 is a prime.

It is a super-2 number, since 2×90502819² = 16381520493893522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90502829) 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, 13629 + ... + 19150.

It is an arithmetic number, because the mean of its divisors is an integer number (12390840).

Almost surely, 2^90502819 is an apocalyptic number.

90502819 is a deficient number, since it is larger than the sum of its proper divisors (8623901).

90502819 is a wasteful number, since it uses less digits than its factorization.

90502819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33041.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 90502819 is about 9513.2969574170. The cubic root of 90502819 is about 448.9734939371.

The spelling of 90502819 in words is "ninety million, five hundred two thousand, eight hundred nineteen".