89902287 has 12 divisors (see below), whose sum is σ = 130851864. Its totient is φ = 59476560.

The previous prime is 89902271. The next prime is 89902313. The reversal of 89902287 is 78220998.

It is not a de Polignac number, because 89902287 - 2⁴ = 89902271 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89900287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36948 + ... + 39305.

It is an arithmetic number, because the mean of its divisors is an integer number (10904322).

Almost surely, 2^89902287 is an apocalyptic number.

89902287 is a deficient number, since it is larger than the sum of its proper divisors (40949577).

89902287 is a wasteful number, since it uses less digits than its factorization.

89902287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76390 (or 76387 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 89902287 is about 9481.6816546433. The cubic root of 89902287 is about 447.9782338888.

The spelling of 89902287 in words is "eighty-nine million, nine hundred two thousand, two hundred eighty-seven".