90676405 has 8 divisors (see below), whose sum is σ = 108866232. Its totient is φ = 72504768.

The previous prime is 90676387. The next prime is 90676427. The reversal of 90676405 is 50467609.

It can be written as a sum of positive squares in 4 ways, for example, as 17522596 + 73153809 = 4186^2 + 8553^2 .

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 90676405 - 2⁷ = 90676277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11719 + ... + 17851.

It is an arithmetic number, because the mean of its divisors is an integer number (13608279).

Almost surely, 2^90676405 is an apocalyptic number.

It is an amenable number.

90676405 is a deficient number, since it is larger than the sum of its proper divisors (18189827).

90676405 is a wasteful number, since it uses less digits than its factorization.

90676405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9095.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 90676405 is about 9522.4159224432. The cubic root of 90676405 is about 449.2603569674.

The spelling of 90676405 in words is "ninety million, six hundred seventy-six thousand, four hundred five".