84268989 has 12 divisors (see below), whose sum is σ = 139110816. Its totient is φ = 48153672.

The previous prime is 84268973. The next prime is 84269021. The reversal of 84268989 is 98986248.

It is not a de Polignac number, because 84268989 - 2⁴ = 84268973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84068989) 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, 668739 + ... + 668864.

It is an arithmetic number, because the mean of its divisors is an integer number (11592568).

Almost surely, 2^84268989 is an apocalyptic number.

It is an amenable number.

84268989 is a deficient number, since it is larger than the sum of its proper divisors (54841827).

84268989 is a wasteful number, since it uses less digits than its factorization.

84268989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337616 (or 1337613 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 84268989 is about 9179.8142138063. The cubic root of 84268989 is about 438.4188930539.

The spelling of 84268989 in words is "eighty-four million, two hundred sixty-eight thousand, nine hundred eighty-nine".