90169413 has 8 divisors (see below), whose sum is σ = 120377376. Its totient is φ = 60037200.

The previous prime is 90169403. The next prime is 90169447. The reversal of 90169413 is 31496109.

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

It is not a de Polignac number, because 90169413 - 2⁴ = 90169397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90169403) 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, 16098 + ... + 20963.

It is an arithmetic number, because the mean of its divisors is an integer number (15047172).

Almost surely, 2^90169413 is an apocalyptic number.

It is an amenable number.

90169413 is a deficient number, since it is larger than the sum of its proper divisors (30207963).

90169413 is a wasteful number, since it uses less digits than its factorization.

90169413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37875.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 90169413 is about 9495.7576317006. The cubic root of 90169413 is about 448.4214866374.

The spelling of 90169413 in words is "ninety million, one hundred sixty-nine thousand, four hundred thirteen".