90090467 has 4 divisors (see below), whose sum is σ = 90136080. Its totient is φ = 90044856.

The previous prime is 90090437. The next prime is 90090491. The reversal of 90090467 is 76409009.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90090467 - 2¹² = 90086371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90090437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19703 + ... + 23840.

It is an arithmetic number, because the mean of its divisors is an integer number (22534020).

Almost surely, 2^90090467 is an apocalyptic number.

90090467 is a deficient number, since it is larger than the sum of its proper divisors (45613).

90090467 is a wasteful number, since it uses less digits than its factorization.

90090467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45612.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 90090467 is about 9491.5998124658. The cubic root of 90090467 is about 448.2905796476.

The spelling of 90090467 in words is "ninety million, ninety thousand, four hundred sixty-seven".