89587745 has 24 divisors (see below), whose sum is σ = 117718776. Its totient is φ = 65415168.

The previous prime is 89587733. The next prime is 89587759. The reversal of 89587745 is 54778598.

It can be written as a sum of positive squares in 12 ways, for example, as 24285184 + 65302561 = 4928^2 + 8081^2 .

It is a de Polignac number, because none of the positive numbers 2^k-89587745 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81419 + ... + 82511.

It is an arithmetic number, because the mean of its divisors is an integer number (4904949).

Almost surely, 2^89587745 is an apocalyptic number.

89587745 is the 5465-th octagonal number.

It is an amenable number.

89587745 is a deficient number, since it is larger than the sum of its proper divisors (28131031).

89587745 is a wasteful number, since it uses less digits than its factorization.

89587745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1208 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 53.

The square root of 89587745 is about 9465.0802954861. The cubic root of 89587745 is about 447.4551748116.

The spelling of 89587745 in words is "eighty-nine million, five hundred eighty-seven thousand, seven hundred forty-five".