84522147 has 16 divisors (see below), whose sum is σ = 120193920. Its totient is φ = 52647552.

The previous prime is 84522131. The next prime is 84522157. The reversal of 84522147 is 74122548.

It is not a de Polignac number, because 84522147 - 2⁴ = 84522131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84522107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128 + ... + 13050.

It is an arithmetic number, because the mean of its divisors is an integer number (7512120).

Almost surely, 2^84522147 is an apocalyptic number.

84522147 is a deficient number, since it is larger than the sum of its proper divisors (35671773).

84522147 is a wasteful number, since it uses less digits than its factorization.

84522147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12082.

The product of its digits is 17920, while the sum is 33.

The square root of 84522147 is about 9193.5927144942. The cubic root of 84522147 is about 438.8574818048.

The spelling of 84522147 in words is "eighty-four million, five hundred twenty-two thousand, one hundred forty-seven".