761409449 has 2 divisors, whose sum is σ = 761409450. Its totient is φ = 761409448.

The previous prime is 761409443. The next prime is 761409463. The reversal of 761409449 is 944904167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669153424 + 92256025 = 25868^2 + 9605^2 .

It is a cyclic number.

It is not a de Polignac number, because 761409449 - 2⁴ = 761409433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (761409443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380704724 + 380704725.

It is an arithmetic number, because the mean of its divisors is an integer number (380704725).

Almost surely, 2^761409449 is an apocalyptic number.

It is an amenable number.

761409449 is a deficient number, since it is larger than the sum of its proper divisors (1).

761409449 is an equidigital number, since it uses as much as digits as its factorization.

761409449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 761409449 is about 27593.6487076284. The cubic root of 761409449 is about 913.1443171674.

The spelling of 761409449 in words is "seven hundred sixty-one million, four hundred nine thousand, four hundred forty-nine".