89288887 has 2 divisors, whose sum is σ = 89288888. Its totient is φ = 89288886.

The previous prime is 89288869. The next prime is 89288911. The reversal of 89288887 is 78888298.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89288887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89288687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44644443 + 44644444.

It is an arithmetic number, because the mean of its divisors is an integer number (44644444).

Almost surely, 2^89288887 is an apocalyptic number.

89288887 is a deficient number, since it is larger than the sum of its proper divisors (1).

89288887 is an equidigital number, since it uses as much as digits as its factorization.

89288887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4128768, while the sum is 58.

The square root of 89288887 is about 9449.2797079989. The cubic root of 89288887 is about 446.9570615399.

The spelling of 89288887 in words is "eighty-nine million, two hundred eighty-eight thousand, eight hundred eighty-seven".