90788429 has 16 divisors (see below), whose sum is σ = 98402304. Its totient is φ = 83516400.

The previous prime is 90788419. The next prime is 90788513. The reversal of 90788429 is 92488709.

It is a cyclic number.

It is not a de Polignac number, because 90788429 - 2⁴ = 90788413 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 (90788419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158714 + ... + 159284.

It is an arithmetic number, because the mean of its divisors is an integer number (6150144).

Almost surely, 2^90788429 is an apocalyptic number.

It is an amenable number.

90788429 is a deficient number, since it is larger than the sum of its proper divisors (7613875).

90788429 is a wasteful number, since it uses less digits than its factorization.

90788429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 90788429 is about 9528.2962275530. The cubic root of 90788429 is about 449.4452901591.

The spelling of 90788429 in words is "ninety million, seven hundred eighty-eight thousand, four hundred twenty-nine".