84768291 has 24 divisors (see below), whose sum is σ = 133053440. Its totient is φ = 51807600.

The previous prime is 84768287. The next prime is 84768293. The reversal of 84768291 is 19286748.

It is not a de Polignac number, because 84768291 - 2² = 84768287 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84768293) 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 23 ways as a sum of consecutive naturals, for example, 2695 + ... + 13296.

Almost surely, 2^84768291 is an apocalyptic number.

84768291 is a deficient number, since it is larger than the sum of its proper divisors (48285149).

84768291 is a wasteful number, since it uses less digits than its factorization.

84768291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16047 (or 16044 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 84768291 is about 9206.9696969198. The cubic root of 84768291 is about 439.2830801009.

The spelling of 84768291 in words is "eighty-four million, seven hundred sixty-eight thousand, two hundred ninety-one".