84006452 has 12 divisors (see below), whose sum is σ = 155659140. Its totient is φ = 39532416.

The previous prime is 84006443. The next prime is 84006463. The reversal of 84006452 is 25460048.

It can be written as a sum of positive squares in 2 ways, for example, as 66650896 + 17355556 = 8164^2 + 4166^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617627 + ... + 617762.

It is an arithmetic number, because the mean of its divisors is an integer number (12971595).

Almost surely, 2^84006452 is an apocalyptic number.

It is an amenable number.

84006452 is a deficient number, since it is larger than the sum of its proper divisors (71652688).

84006452 is a wasteful number, since it uses less digits than its factorization.

84006452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235410 (or 1235408 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 84006452 is about 9165.5033686099. The cubic root of 84006452 is about 437.9631266610.

The spelling of 84006452 in words is "eighty-four million, six thousand, four hundred fifty-two".