90869807 has 8 divisors (see below), whose sum is σ = 104452896. Its totient is φ = 77437152.

The previous prime is 90869797. The next prime is 90869833. The reversal of 90869807 is 70896809.

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 90869807 - 2⁸ = 90869551 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 (90868807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36308 + ... + 38729.

It is an arithmetic number, because the mean of its divisors is an integer number (13056612).

Almost surely, 2^90869807 is an apocalyptic number.

90869807 is a deficient number, since it is larger than the sum of its proper divisors (13583089).

90869807 is a wasteful number, since it uses less digits than its factorization.

90869807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75217.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 90869807 is about 9532.5656042851. The cubic root of 90869807 is about 449.5795364747.

The spelling of 90869807 in words is "ninety million, eight hundred sixty-nine thousand, eight hundred seven".