84773489 has 4 divisors (see below), whose sum is σ = 84810660. Its totient is φ = 84736320.

The previous prime is 84773483. The next prime is 84773531. The reversal of 84773489 is 98437748.

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 4133089 + 80640400 = 2033^2 + 8980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84773489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84773483) 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, 14924 + ... + 19805.

It is an arithmetic number, because the mean of its divisors is an integer number (21202665).

Almost surely, 2^84773489 is an apocalyptic number.

It is an amenable number.

84773489 is a deficient number, since it is larger than the sum of its proper divisors (37171).

84773489 is a wasteful number, since it uses less digits than its factorization.

84773489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37170.

The product of its digits is 1354752, while the sum is 50.

The square root of 84773489 is about 9207.2519787394. The cubic root of 84773489 is about 439.2920588781.

The spelling of 84773489 in words is "eighty-four million, seven hundred seventy-three thousand, four hundred eighty-nine".