84676747 has 4 divisors (see below), whose sum is σ = 84699856. Its totient is φ = 84653640.

The previous prime is 84676733. The next prime is 84676763. The reversal of 84676747 is 74767648.

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

It is a cyclic number.

It is not a de Polignac number, because 84676747 - 2⁷ = 84676619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84676747.

It is not an unprimeable number, because it can be changed into a prime (84676727) 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, 4704 + ... + 13837.

It is an arithmetic number, because the mean of its divisors is an integer number (21174964).

Almost surely, 2^84676747 is an apocalyptic number.

84676747 is a deficient number, since it is larger than the sum of its proper divisors (23109).

84676747 is a wasteful number, since it uses less digits than its factorization.

84676747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23108.

The product of its digits is 1580544, while the sum is 49.

The square root of 84676747 is about 9201.9969028467. The cubic root of 84676747 is about 439.1248911738.

Subtracting from 84676747 its reverse (74767648), we obtain a palindrome (9909099).

The spelling of 84676747 in words is "eighty-four million, six hundred seventy-six thousand, seven hundred forty-seven".