84288771 has 36 divisors (see below), whose sum is σ = 149972472. Its totient is φ = 45327744.

The previous prime is 84288751. The next prime is 84288781. The reversal of 84288771 is 17788248.

It is not a de Polignac number, because 84288771 - 2⁶ = 84288707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84288751) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1876 + ... + 13118.

It is an arithmetic number, because the mean of its divisors is an integer number (4165902).

Almost surely, 2^84288771 is an apocalyptic number.

84288771 is a deficient number, since it is larger than the sum of its proper divisors (65683701).

84288771 is a wasteful number, since it uses less digits than its factorization.

84288771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11280 (or 11270 counting only the distinct ones).

The product of its digits is 200704, while the sum is 45.

The square root of 84288771 is about 9180.8916233664. The cubic root of 84288771 is about 438.4531963964.

The spelling of 84288771 in words is "eighty-four million, two hundred eighty-eight thousand, seven hundred seventy-one".