89551287 has 12 divisors (see below), whose sum is σ = 147830800. Its totient is φ = 51172128.

The previous prime is 89551279. The next prime is 89551289. The reversal of 89551287 is 78215598.

It is a happy number.

It is not a de Polignac number, because 89551287 - 2³ = 89551279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89551289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 710662 + ... + 710787.

Almost surely, 2^89551287 is an apocalyptic number.

89551287 is a deficient number, since it is larger than the sum of its proper divisors (58279513).

89551287 is a wasteful number, since it uses less digits than its factorization.

89551287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421462 (or 1421459 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 89551287 is about 9463.1541781797. The cubic root of 89551287 is about 447.3944688368.

The spelling of 89551287 in words is "eighty-nine million, five hundred fifty-one thousand, two hundred eighty-seven".