84344851 has 2 divisors, whose sum is σ = 84344852. Its totient is φ = 84344850.

The previous prime is 84344833. The next prime is 84344879. The reversal of 84344851 is 15844348.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84344851 - 2¹⁹ = 83820563 is a prime.

It is a super-2 number, since 2×84344851² = 14228107780424402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84344851.

It is not a weakly prime, because it can be changed into another prime (84344551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42172425 + 42172426.

It is an arithmetic number, because the mean of its divisors is an integer number (42172426).

Almost surely, 2^84344851 is an apocalyptic number.

84344851 is a deficient number, since it is larger than the sum of its proper divisors (1).

84344851 is an equidigital number, since it uses as much as digits as its factorization.

84344851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61440, while the sum is 37.

The square root of 84344851 is about 9183.9452851158. The cubic root of 84344851 is about 438.5504137909.

The spelling of 84344851 in words is "eighty-four million, three hundred forty-four thousand, eight hundred fifty-one".