84551329 has 2 divisors, whose sum is σ = 84551330. Its totient is φ = 84551328.

The previous prime is 84551317. The next prime is 84551347. The reversal of 84551329 is 92315548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 41254929 = 6580^2 + 6423^2 .

It is a cyclic number.

It is not a de Polignac number, because 84551329 - 2⁵ = 84551297 is a prime.

It is not a weakly prime, because it can be changed into another prime (84551399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42275664 + 42275665.

It is an arithmetic number, because the mean of its divisors is an integer number (42275665).

Almost surely, 2^84551329 is an apocalyptic number.

It is an amenable number.

84551329 is a deficient number, since it is larger than the sum of its proper divisors (1).

84551329 is an equidigital number, since it uses as much as digits as its factorization.

84551329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 84551329 is about 9195.1796611051. The cubic root of 84551329 is about 438.9079824365.

The spelling of 84551329 in words is "eighty-four million, five hundred fifty-one thousand, three hundred twenty-nine".