90336481 has 4 divisors (see below), whose sum is σ = 90627264. Its totient is φ = 90045700.

The previous prime is 90336473. The next prime is 90336509. The reversal of 90336481 is 18463309.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90336481 - 2³ = 90336473 is a prime.

It is a super-2 number, since 2×90336481² = 16321359598926722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90336451) 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, 144925 + ... + 145546.

It is an arithmetic number, because the mean of its divisors is an integer number (22656816).

Almost surely, 2^90336481 is an apocalyptic number.

It is an amenable number.

90336481 is a deficient number, since it is larger than the sum of its proper divisors (290783).

90336481 is a wasteful number, since it uses less digits than its factorization.

90336481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290782.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 90336481 is about 9504.5505417142. The cubic root of 90336481 is about 448.6982643781.

The spelling of 90336481 in words is "ninety million, three hundred thirty-six thousand, four hundred eighty-one".