90349599 has 8 divisors (see below), whose sum is σ = 120542080. Its totient is φ = 60195096.

The previous prime is 90349573. The next prime is 90349603. The reversal of 90349599 is 99594309.

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

It is not a de Polignac number, because 90349599 - 2¹² = 90345503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90349549) 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, 3379 + ... + 13860.

It is an arithmetic number, because the mean of its divisors is an integer number (15067760).

Almost surely, 2^90349599 is an apocalyptic number.

90349599 is a deficient number, since it is larger than the sum of its proper divisors (30192481).

90349599 is a wasteful number, since it uses less digits than its factorization.

90349599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18989.

The product of its (nonzero) digits is 393660, while the sum is 48.

The square root of 90349599 is about 9505.2406071598. The cubic root of 90349599 is about 448.7199822153.

The spelling of 90349599 in words is "ninety million, three hundred forty-nine thousand, five hundred ninety-nine".