90535899 has 8 divisors (see below), whose sum is σ = 121034560. Its totient is φ = 60197256.

The previous prime is 90535859. The next prime is 90535901. The reversal of 90535899 is 99853509.

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

It is not a de Polignac number, because 90535899 - 2¹¹ = 90533851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90535849) 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, 38677 + ... + 40950.

It is an arithmetic number, because the mean of its divisors is an integer number (15129320).

Almost surely, 2^90535899 is an apocalyptic number.

90535899 is a deficient number, since it is larger than the sum of its proper divisors (30498661).

90535899 is a wasteful number, since it uses less digits than its factorization.

90535899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80009.

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 90535899 is about 9515.0354176955. The cubic root of 90535899 is about 449.0281892279.

The spelling of 90535899 in words is "ninety million, five hundred thirty-five thousand, eight hundred ninety-nine".