761381377 has 2 divisors, whose sum is σ = 761381378. Its totient is φ = 761381376.

The previous prime is 761381339. The next prime is 761381407. The reversal of 761381377 is 773183167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 574129521 + 187251856 = 23961^2 + 13684^2 .

It is a cyclic number.

It is not a de Polignac number, because 761381377 - 2¹¹ = 761379329 is a prime.

It is a super-2 number, since 2×761381377² = 1159403202484832258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (761321377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380690688 + 380690689.

It is an arithmetic number, because the mean of its divisors is an integer number (380690689).

Almost surely, 2^761381377 is an apocalyptic number.

It is an amenable number.

761381377 is a deficient number, since it is larger than the sum of its proper divisors (1).

761381377 is an equidigital number, since it uses as much as digits as its factorization.

761381377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 43.

The square root of 761381377 is about 27593.1400351609. The cubic root of 761381377 is about 913.1330949521.

The spelling of 761381377 in words is "seven hundred sixty-one million, three hundred eighty-one thousand, three hundred seventy-seven".