90466409 has 4 divisors (see below), whose sum is σ = 98690640. Its totient is φ = 82242180.

The previous prime is 90466381. The next prime is 90466427.

90466409 is nontrivially palindromic in base 10.

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 a de Polignac number, because none of the positive numbers 2^k-90466409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90466489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4112099 + ... + 4112120.

It is an arithmetic number, because the mean of its divisors is an integer number (24672660).

Almost surely, 2^90466409 is an apocalyptic number.

It is an amenable number.

90466409 is a deficient number, since it is larger than the sum of its proper divisors (8224231).

90466409 is a wasteful number, since it uses less digits than its factorization.

90466409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8224230.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 90466409 is about 9511.3831276003. The cubic root of 90466409 is about 448.9132773318.

The spelling of 90466409 in words is "ninety million, four hundred sixty-six thousand, four hundred nine".