84044749 has 2 divisors, whose sum is σ = 84044750. Its totient is φ = 84044748.

The previous prime is 84044743. The next prime is 84044773. The reversal of 84044749 is 94744048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83997225 + 47524 = 9165^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 84044749 - 2⁵ = 84044717 is a prime.

It is equal to p_4891576 and since 84044749 and 4891576 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84044743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42022374 + 42022375.

It is an arithmetic number, because the mean of its divisors is an integer number (42022375).

Almost surely, 2^84044749 is an apocalyptic number.

It is an amenable number.

84044749 is a deficient number, since it is larger than the sum of its proper divisors (1).

84044749 is an equidigital number, since it uses as much as digits as its factorization.

84044749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 84044749 is about 9167.5923229603. The cubic root of 84044749 is about 438.0296696678.

The spelling of 84044749 in words is "eighty-four million, forty-four thousand, seven hundred forty-nine".