89790245 has 8 divisors (see below), whose sum is σ = 107824920. Its totient is φ = 71781120.

The previous prime is 89790241. The next prime is 89790263. The reversal of 89790245 is 54209798.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8916196 + 80874049 = 2986^2 + 8993^2 .

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

It is not a de Polignac number, because 89790245 - 2² = 89790241 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 89790196 and 89790205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89790241) 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 7 ways as a sum of consecutive naturals, for example, 2465 + ... + 13625.

It is an arithmetic number, because the mean of its divisors is an integer number (13478115).

Almost surely, 2^89790245 is an apocalyptic number.

It is an amenable number.

89790245 is a deficient number, since it is larger than the sum of its proper divisors (18034675).

89790245 is a wasteful number, since it uses less digits than its factorization.

89790245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 89790245 is about 9475.7714725504. The cubic root of 89790245 is about 447.7920567833.

The spelling of 89790245 in words is "eighty-nine million, seven hundred ninety thousand, two hundred forty-five".