84734279 has 12 divisors (see below), whose sum is σ = 100668384. Its totient is φ = 71082144.

The previous prime is 84734267. The next prime is 84734303. The reversal of 84734279 is 97243748.

It is not a de Polignac number, because 84734279 - 2¹⁶ = 84668743 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 (84734219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16094 + ... + 20699.

It is an arithmetic number, because the mean of its divisors is an integer number (8389032).

Almost surely, 2^84734279 is an apocalyptic number.

84734279 is a deficient number, since it is larger than the sum of its proper divisors (15934105).

84734279 is a wasteful number, since it uses less digits than its factorization.

84734279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36854 (or 36847 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 84734279 is about 9205.1224326459. The cubic root of 84734279 is about 439.2243203349.

The spelling of 84734279 in words is "eighty-four million, seven hundred thirty-four thousand, two hundred seventy-nine".