84738449 has 2 divisors, whose sum is σ = 84738450. Its totient is φ = 84738448.

The previous prime is 84738443. The next prime is 84738503. The reversal of 84738449 is 94483748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45900625 + 38837824 = 6775^2 + 6232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84738449 is a prime.

It is not a weakly prime, because it can be changed into another prime (84738443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42369224 + 42369225.

It is an arithmetic number, because the mean of its divisors is an integer number (42369225).

Almost surely, 2^84738449 is an apocalyptic number.

It is an amenable number.

84738449 is a deficient number, since it is larger than the sum of its proper divisors (1).

84738449 is an equidigital number, since it uses as much as digits as its factorization.

84738449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 47.

The square root of 84738449 is about 9205.3489341795. The cubic root of 84738449 is about 439.2315253504.

The spelling of 84738449 in words is "eighty-four million, seven hundred thirty-eight thousand, four hundred forty-nine".