89070885 has 12 divisors (see below), whose sum is σ = 154389612. Its totient is φ = 47504448.

The previous prime is 89070847. The next prime is 89070889. The reversal of 89070885 is 58807098.

It can be written as a sum of positive squares in 2 ways, for example, as 16378209 + 72692676 = 4047^2 + 8526^2 .

It is not a de Polignac number, because 89070885 - 2¹⁷ = 88939813 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1979353 = 89070885 / (8 + 9 + 0 + 7 + 0 + 8 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 89070885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89070889) 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, 989632 + ... + 989721.

It is an arithmetic number, because the mean of its divisors is an integer number (12865801).

Almost surely, 2^89070885 is an apocalyptic number.

It is an amenable number.

89070885 is a deficient number, since it is larger than the sum of its proper divisors (65318727).

89070885 is a wasteful number, since it uses less digits than its factorization.

89070885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979364 (or 1979361 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 89070885 is about 9437.7372817853. The cubic root of 89070885 is about 446.5930112330.

The spelling of 89070885 in words is "eighty-nine million, seventy thousand, eight hundred eighty-five".