90283789 has 4 divisors (see below), whose sum is σ = 92383456. Its totient is φ = 88184124.

The previous prime is 90283777. The next prime is 90283793. The reversal of 90283789 is 98738209.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90283789 - 2²³ = 81895181 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 (90283729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049769 + ... + 1049854.

It is an arithmetic number, because the mean of its divisors is an integer number (23095864).

Almost surely, 2^90283789 is an apocalyptic number.

It is an amenable number.

90283789 is a deficient number, since it is larger than the sum of its proper divisors (2099667).

90283789 is a wasteful number, since it uses less digits than its factorization.

90283789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099666.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 90283789 is about 9501.7782019999. The cubic root of 90283789 is about 448.6110076131.

The spelling of 90283789 in words is "ninety million, two hundred eighty-three thousand, seven hundred eighty-nine".