90339669 has 48 divisors (see below), whose sum is σ = 155675520. Its totient is φ = 49392000.

The previous prime is 90339659. The next prime is 90339671. The reversal of 90339669 is 96693309.

It is not a de Polignac number, because 90339669 - 2⁷ = 90339541 is a prime.

It is a super-2 number, since 2×90339669² = 16322511590059122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90339659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 359794 + ... + 360044.

It is an arithmetic number, because the mean of its divisors is an integer number (3243240).

Almost surely, 2^90339669 is an apocalyptic number.

It is an amenable number.

90339669 is a deficient number, since it is larger than the sum of its proper divisors (65335851).

90339669 is a wasteful number, since it uses less digits than its factorization.

90339669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The square root of 90339669 is about 9504.7182493749. The cubic root of 90339669 is about 448.7035425456.

The spelling of 90339669 in words is "ninety million, three hundred thirty-nine thousand, six hundred sixty-nine".