90826405 has 8 divisors (see below), whose sum is σ = 112750200. Its totient is φ = 70155456.

The previous prime is 90826399. The next prime is 90826433. The reversal of 90826405 is 50462809.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20367169 + 70459236 = 4513^2 + 8394^2 .

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 90826405 - 2³ = 90826397 is a prime.

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, 313050 + ... + 313339.

It is an arithmetic number, because the mean of its divisors is an integer number (14093775).

Almost surely, 2^90826405 is an apocalyptic number.

It is an amenable number.

90826405 is a deficient number, since it is larger than the sum of its proper divisors (21923795).

90826405 is a wasteful number, since it uses less digits than its factorization.

90826405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626423.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 90826405 is about 9530.2888203873. The cubic root of 90826405 is about 449.5079477586.

The spelling of 90826405 in words is "ninety million, eight hundred twenty-six thousand, four hundred five".