90488409 has 8 divisors (see below), whose sum is σ = 131619552. Its totient is φ = 54841440.

The previous prime is 90488407. The next prime is 90488413.

90488409 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90488409 - 2¹ = 90488407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90488407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371004 + ... + 1371069.

It is an arithmetic number, because the mean of its divisors is an integer number (16452444).

Almost surely, 2^90488409 is an apocalyptic number.

It is an amenable number.

90488409 is a deficient number, since it is larger than the sum of its proper divisors (41131143).

90488409 is a wasteful number, since it uses less digits than its factorization.

90488409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742087.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 90488409 is about 9512.5395662778. The cubic root of 90488409 is about 448.9496639190.

The spelling of 90488409 in words is "ninety million, four hundred eighty-eight thousand, four hundred nine".