89945245 has 16 divisors (see below), whose sum is σ = 116634672. Its totient is φ = 66193920.

The previous prime is 89945239. The next prime is 89945279. The reversal of 89945245 is 54254998.

It can be written as a sum of positive squares in 8 ways, for example, as 16208676 + 73736569 = 4026^2 + 8587^2 .

It is not a de Polignac number, because 89945245 - 2²¹ = 87848093 is a prime.

It is a super-2 number, since 2×89945245² = 16180294196220050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89945195 and 89945204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18135 + ... + 22555.

It is an arithmetic number, because the mean of its divisors is an integer number (7289667).

Almost surely, 2^89945245 is an apocalyptic number.

It is an amenable number.

89945245 is a deficient number, since it is larger than the sum of its proper divisors (26689427).

89945245 is a wasteful number, since it uses less digits than its factorization.

89945245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752.

The product of its digits is 518400, while the sum is 46.

The square root of 89945245 is about 9483.9466995550. The cubic root of 89945245 is about 448.0495749906.

The spelling of 89945245 in words is "eighty-nine million, nine hundred forty-five thousand, two hundred forty-five".