90413491 has 8 divisors (see below), whose sum is σ = 103486464. Its totient is φ = 77379720.

The previous prime is 90413471. The next prime is 90413501. The reversal of 90413491 is 19431409.

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

It is a cyclic number.

It is not a de Polignac number, because 90413491 - 2⁷ = 90413363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90413471) 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, 4675 + ... + 14236.

It is an arithmetic number, because the mean of its divisors is an integer number (12935808).

Almost surely, 2^90413491 is an apocalyptic number.

90413491 is a deficient number, since it is larger than the sum of its proper divisors (13072973).

90413491 is a wasteful number, since it uses less digits than its factorization.

90413491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19601.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90413491 is about 9508.6008960309. The cubic root of 90413491 is about 448.8257301914.

The spelling of 90413491 in words is "ninety million, four hundred thirteen thousand, four hundred ninety-one".