90116633 has 4 divisors (see below), whose sum is σ = 90212148. Its totient is φ = 90021120.

The previous prime is 90116629. The next prime is 90116641. The reversal of 90116633 is 33661109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33661109 = 409 ⋅82301.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 61042969 = 5392^2 + 7813^2 .

It is a cyclic number.

It is not a de Polignac number, because 90116633 - 2² = 90116629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90116596 and 90116605.

It is not an unprimeable number, because it can be changed into a prime (90116693) 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 3 ways as a sum of consecutive naturals, for example, 46328 + ... + 48233.

It is an arithmetic number, because the mean of its divisors is an integer number (22553037).

Almost surely, 2^90116633 is an apocalyptic number.

It is an amenable number.

90116633 is a deficient number, since it is larger than the sum of its proper divisors (95515).

90116633 is an equidigital number, since it uses as much as digits as its factorization.

90116633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95514.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 90116633 is about 9492.9780890930. The cubic root of 90116633 is about 448.3339761587. Note that the first 3 decimals are identical.

The spelling of 90116633 in words is "ninety million, one hundred sixteen thousand, six hundred thirty-three".