76347449 has 2 divisors, whose sum is σ = 76347450. Its totient is φ = 76347448.

The previous prime is 76347443. The next prime is 76347473. The reversal of 76347449 is 94474367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74511424 + 1836025 = 8632^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 76347449 - 2¹⁶ = 76281913 is a prime.

It is not a weakly prime, because it can be changed into another prime (76347443) 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, 38173724 + 38173725.

It is an arithmetic number, because the mean of its divisors is an integer number (38173725).

Almost surely, 2^76347449 is an apocalyptic number.

It is an amenable number.

76347449 is a deficient number, since it is larger than the sum of its proper divisors (1).

76347449 is an equidigital number, since it uses as much as digits as its factorization.

76347449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 44.

The square root of 76347449 is about 8737.7027301231. The cubic root of 76347449 is about 424.2268740287.

The spelling of 76347449 in words is "seventy-six million, three hundred forty-seven thousand, four hundred forty-nine".