90533370 has 32 divisors (see below), whose sum is σ = 219438720. Its totient is φ = 23902400.

The previous prime is 90533363. The next prime is 90533383. The reversal of 90533370 is 7333509.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11910 + ... + 17969.

It is an arithmetic number, because the mean of its divisors is an integer number (6857460).

Almost surely, 2^90533370 is an apocalyptic number.

90533370 is an abundant number, since it is smaller than the sum of its proper divisors (128905350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90533370 is a wasteful number, since it uses less digits than its factorization.

90533370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29990.

The product of its (nonzero) digits is 8505, while the sum is 30.

The square root of 90533370 is about 9514.9025218338. The cubic root of 90533370 is about 449.0240081871.

Adding to 90533370 its reverse (7333509), we get a palindrome (97866879).

The spelling of 90533370 in words is "ninety million, five hundred thirty-three thousand, three hundred seventy".