90216826 has 16 divisors (see below), whose sum is σ = 162797760. Its totient is φ = 36629280.

The previous prime is 90216803. The next prime is 90216839. The reversal of 90216826 is 62861209.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90216791 and 90216800.

It is an unprimeable number.

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, 169315 + ... + 169846.

It is an arithmetic number, because the mean of its divisors is an integer number (10174860).

Almost surely, 2^90216826 is an apocalyptic number.

90216826 is a deficient number, since it is larger than the sum of its proper divisors (72580934).

90216826 is a wasteful number, since it uses less digits than its factorization.

90216826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339189.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 90216826 is about 9498.2538395223. The cubic root of 90216826 is about 448.5000693919.

The spelling of 90216826 in words is "ninety million, two hundred sixteen thousand, eight hundred twenty-six".