761543449 has 2 divisors, whose sum is σ = 761543450. Its totient is φ = 761543448.

The previous prime is 761543443. The next prime is 761543473. The reversal of 761543449 is 944345167.

761543449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479303449 + 282240000 = 21893^2 + 16800^2 .

It is an emirp because it is prime and its reverse (944345167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 761543449 - 2⁵ = 761543417 is a prime.

It is not a weakly prime, because it can be changed into another prime (761543443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380771724 + 380771725.

It is an arithmetic number, because the mean of its divisors is an integer number (380771725).

Almost surely, 2^761543449 is an apocalyptic number.

It is an amenable number.

761543449 is a deficient number, since it is larger than the sum of its proper divisors (1).

761543449 is an equidigital number, since it uses as much as digits as its factorization.

761543449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 761543449 is about 27596.0766957914. The cubic root of 761543449 is about 913.1978819352.

The spelling of 761543449 in words is "seven hundred sixty-one million, five hundred forty-three thousand, four hundred forty-nine".