84216452 has 24 divisors (see below), whose sum is σ = 149549400. Its totient is φ = 41492736.

The previous prime is 84216427. The next prime is 84216469. The reversal of 84216452 is 25461248.

It can be written as a sum of positive squares in 4 ways, for example, as 11182336 + 73034116 = 3344^2 + 8546^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101174 + ... + 102002.

It is an arithmetic number, because the mean of its divisors is an integer number (6231225).

Almost surely, 2^84216452 is an apocalyptic number.

It is an amenable number.

84216452 is a deficient number, since it is larger than the sum of its proper divisors (65332948).

84216452 is a wasteful number, since it uses less digits than its factorization.

84216452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175 (or 1173 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 84216452 is about 9176.9522173759. The cubic root of 84216452 is about 438.3277642296.

The spelling of 84216452 in words is "eighty-four million, two hundred sixteen thousand, four hundred fifty-two".