84064537 has 4 divisors (see below), whose sum is σ = 85216180. Its totient is φ = 82912896.

The previous prime is 84064501. The next prime is 84064543. The reversal of 84064537 is 73546048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16232841 + 67831696 = 4029^2 + 8236^2 .

It is a cyclic number.

It is not a de Polignac number, because 84064537 - 2¹⁵ = 84031769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84064496 and 84064505.

It is not an unprimeable number, because it can be changed into a prime (84065537) by changing a digit.

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, 575712 + ... + 575857.

It is an arithmetic number, because the mean of its divisors is an integer number (21304045).

Almost surely, 2^84064537 is an apocalyptic number.

It is an amenable number.

84064537 is a deficient number, since it is larger than the sum of its proper divisors (1151643).

84064537 is a wasteful number, since it uses less digits than its factorization.

84064537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151642.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 84064537 is about 9168.6714959148. The cubic root of 84064537 is about 438.0640444148.

The spelling of 84064537 in words is "eighty-four million, sixty-four thousand, five hundred thirty-seven".