84769 has 4 divisors (see below), whose sum is σ = 85696. Its totient is φ = 83844.

The previous prime is 84761. The next prime is 84787. The reversal of 84769 is 96748.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 84769 - 2³ = 84761 is a prime.

It is a super-2 number, since 2×84769² = 14371566722, which contains 22 as substring.

84769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (84761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309 + ... + 514.

It is an arithmetic number, because the mean of its divisors is an integer number (21424).

2⁸⁴⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

84769 is a deficient number, since it is larger than the sum of its proper divisors (927).

84769 is a wasteful number, since it uses less digits than its factorization.

84769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its digits is 12096, while the sum is 34.

The square root of 84769 is about 291.1511634873. The cubic root of 84769 is about 43.9284304815.

The spelling of 84769 in words is "eighty-four thousand, seven hundred sixty-nine".