90533845 has 8 divisors (see below), whose sum is σ = 108696960. Its totient is φ = 72389520.

The previous prime is 90533843. The next prime is 90533851. The reversal of 90533845 is 54833509.

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

It is not a de Polignac number, because 90533845 - 2¹ = 90533843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90533843) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10216 + ... + 16894.

It is an arithmetic number, because the mean of its divisors is an integer number (13587120).

Almost surely, 2^90533845 is an apocalyptic number.

It is an amenable number.

90533845 is a deficient number, since it is larger than the sum of its proper divisors (18163115).

90533845 is a wasteful number, since it uses less digits than its factorization.

90533845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9395.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 90533845 is about 9514.9274826454. The cubic root of 90533845 is about 449.0247934814.

It can be divided in two parts, 90533 and 845, that added together give a triangular number (91378 = T₄₂₇).

The spelling of 90533845 in words is "ninety million, five hundred thirty-three thousand, eight hundred forty-five".