90788941 has 4 divisors (see below), whose sum is σ = 91451772. Its totient is φ = 90126112.

The previous prime is 90788927. The next prime is 90788963. The reversal of 90788941 is 14988709.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14988709 = 23 ⋅651683.

It can be written as a sum of positive squares in 2 ways, for example, as 31036041 + 59752900 = 5571^2 + 7730^2 .

It is a cyclic number.

It is not a de Polignac number, because 90788941 - 2¹¹ = 90786893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90788891 and 90788900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90788641) 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 3 ways as a sum of consecutive naturals, for example, 331210 + ... + 331483.

It is an arithmetic number, because the mean of its divisors is an integer number (22862943).

Almost surely, 2^90788941 is an apocalyptic number.

It is an amenable number.

90788941 is a deficient number, since it is larger than the sum of its proper divisors (662831).

90788941 is a wasteful number, since it uses less digits than its factorization.

90788941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662830.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 90788941 is about 9528.3230948578. The cubic root of 90788941 is about 449.4461350375.

The spelling of 90788941 in words is "ninety million, seven hundred eighty-eight thousand, nine hundred forty-one".