89399745 has 24 divisors (see below), whose sum is σ = 156189696. Its totient is φ = 47301408.

The previous prime is 89399707. The next prime is 89399747. The reversal of 89399745 is 54799398.

It is not a de Polignac number, because 89399745 - 2¹⁰ = 89398721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89399691 and 89399700.

It is not an unprimeable number, because it can be changed into a prime (89399747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2107 + ... + 13536.

It is an arithmetic number, because the mean of its divisors is an integer number (6507904).

Almost surely, 2^89399745 is an apocalyptic number.

It is an amenable number.

89399745 is a deficient number, since it is larger than the sum of its proper divisors (66789951).

89399745 is a wasteful number, since it uses less digits than its factorization.

89399745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15781 (or 15778 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 89399745 is about 9455.1438381444. The cubic root of 89399745 is about 447.1419605260.

The spelling of 89399745 in words is "eighty-nine million, three hundred ninety-nine thousand, seven hundred forty-five".