90530385 has 48 divisors (see below), whose sum is σ = 164451840. Its totient is φ = 42451200.

The previous prime is 90530347. The next prime is 90530393. The reversal of 90530385 is 58303509.

It is not a de Polignac number, because 90530385 - 2¹³ = 90522193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55461 + ... + 57069.

It is an arithmetic number, because the mean of its divisors is an integer number (3426080).

Almost surely, 2^90530385 is an apocalyptic number.

It is an amenable number.

90530385 is a deficient number, since it is larger than the sum of its proper divisors (73921455).

90530385 is a wasteful number, since it uses less digits than its factorization.

90530385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 90530385 is about 9514.7456613406. The cubic root of 90530385 is about 449.0190731692.

The spelling of 90530385 in words is "ninety million, five hundred thirty thousand, three hundred eighty-five".