89744251 has 4 divisors (see below), whose sum is σ = 91265400. Its totient is φ = 88223104.

The previous prime is 89744243. The next prime is 89744273. The reversal of 89744251 is 15244798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15244798 = 2 ⋅7622399.

It is a cyclic number.

It is not a de Polignac number, because 89744251 - 2³ = 89744243 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89744231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760486 + ... + 760603.

It is an arithmetic number, because the mean of its divisors is an integer number (22816350).

Almost surely, 2^89744251 is an apocalyptic number.

89744251 is a deficient number, since it is larger than the sum of its proper divisors (1521149).

89744251 is a wasteful number, since it uses less digits than its factorization.

89744251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521148.

The product of its digits is 80640, while the sum is 40.

The square root of 89744251 is about 9473.3442352740. The cubic root of 89744251 is about 447.7155849813.

It can be divided in two parts, 8974 and 4251, that added together give a square (13225 = 115²).

The spelling of 89744251 in words is "eighty-nine million, seven hundred forty-four thousand, two hundred fifty-one".