89857867 has 12 divisors (see below), whose sum is σ = 101443888. Its totient is φ = 79477200.

The previous prime is 89857861. The next prime is 89857891. The reversal of 89857867 is 76875898.

It is not a de Polignac number, because 89857867 - 2¹¹ = 89855819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89857861) 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, 5559 + ... + 14512.

Almost surely, 2^89857867 is an apocalyptic number.

89857867 is a deficient number, since it is larger than the sum of its proper divisors (11586021).

89857867 is a wasteful number, since it uses less digits than its factorization.

89857867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20130 (or 20119 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 58.

The square root of 89857867 is about 9479.3389537457. The cubic root of 89857867 is about 447.9044409148.

The spelling of 89857867 in words is "eighty-nine million, eight hundred fifty-seven thousand, eight hundred sixty-seven".