84889877 has 4 divisors (see below), whose sum is σ = 87184236. Its totient is φ = 82595520.

The previous prime is 84889867. The next prime is 84889897. The reversal of 84889877 is 77898848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31292836 + 53597041 = 5594^2 + 7321^2 .

It is a cyclic number.

It is not a de Polignac number, because 84889877 - 2⁶ = 84889813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84889867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147124 + ... + 1147197.

It is an arithmetic number, because the mean of its divisors is an integer number (21796059).

Almost surely, 2^84889877 is an apocalyptic number.

It is an amenable number.

84889877 is a deficient number, since it is larger than the sum of its proper divisors (2294359).

84889877 is a wasteful number, since it uses less digits than its factorization.

84889877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294358.

The product of its digits is 7225344, while the sum is 59.

The square root of 84889877 is about 9213.5702634755. The cubic root of 84889877 is about 439.4930059118.

The spelling of 84889877 in words is "eighty-four million, eight hundred eighty-nine thousand, eight hundred seventy-seven".