89470187 has 16 divisors (see below), whose sum is σ = 93985920. Its totient is φ = 85105152.

The previous prime is 89470177. The next prime is 89470193. The reversal of 89470187 is 78107498.

It is not a de Polignac number, because 89470187 - 2¹⁸ = 89208043 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89470127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305213 + ... + 305505.

It is an arithmetic number, because the mean of its divisors is an integer number (5874120).

Almost surely, 2^89470187 is an apocalyptic number.

89470187 is a deficient number, since it is larger than the sum of its proper divisors (4515733).

89470187 is a wasteful number, since it uses less digits than its factorization.

89470187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 89470187 is about 9458.8681669637. The cubic root of 89470187 is about 447.2593706478.

The spelling of 89470187 in words is "eighty-nine million, four hundred seventy thousand, one hundred eighty-seven".