766542629 has 2 divisors, whose sum is σ = 766542630. Its totient is φ = 766542628.

The previous prime is 766542613. The next prime is 766542641. The reversal of 766542629 is 926245667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 662032900 + 104509729 = 25730^2 + 10223^2 .

It is a cyclic number.

It is not a de Polignac number, because 766542629 - 2⁴ = 766542613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766542659) 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, 383271314 + 383271315.

It is an arithmetic number, because the mean of its divisors is an integer number (383271315).

Almost surely, 2^766542629 is an apocalyptic number.

It is an amenable number.

766542629 is a deficient number, since it is larger than the sum of its proper divisors (1).

766542629 is an equidigital number, since it uses as much as digits as its factorization.

766542629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The square root of 766542629 is about 27686.5062620765. The cubic root of 766542629 is about 915.1917656736.

The spelling of 766542629 in words is "seven hundred sixty-six million, five hundred forty-two thousand, six hundred twenty-nine".