90437669 has 8 divisors (see below), whose sum is σ = 103469568. Its totient is φ = 77433840.

The previous prime is 90437651. The next prime is 90437687. The reversal of 90437669 is 96673409.

It is an interprime number because it is at equal distance from previous prime (90437651) and next prime (90437687).

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 90437669 - 2¹⁶ = 90372133 is a prime.

It is a super-2 number, since 2×90437669² = 16357943948307122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90437609) 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, 419 + ... + 13455.

It is an arithmetic number, because the mean of its divisors is an integer number (12933696).

Almost surely, 2^90437669 is an apocalyptic number.

It is an amenable number.

90437669 is a deficient number, since it is larger than the sum of its proper divisors (13031899).

90437669 is a wasteful number, since it uses less digits than its factorization.

90437669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14035.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 90437669 is about 9509.8721863125. The cubic root of 90437669 is about 448.8657343295.

The spelling of 90437669 in words is "ninety million, four hundred thirty-seven thousand, six hundred sixty-nine".