766377427 has 2 divisors, whose sum is σ = 766377428. Its totient is φ = 766377426.

The previous prime is 766377419. The next prime is 766377439. The reversal of 766377427 is 724773667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 766377427 - 2³ = 766377419 is a prime.

It is not a weakly prime, because it can be changed into another prime (766377467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383188713 + 383188714.

It is an arithmetic number, because the mean of its divisors is an integer number (383188714).

Almost surely, 2^766377427 is an apocalyptic number.

766377427 is a deficient number, since it is larger than the sum of its proper divisors (1).

766377427 is an equidigital number, since it uses as much as digits as its factorization.

766377427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2074464, while the sum is 49.

The square root of 766377427 is about 27683.5226624070. The cubic root of 766377427 is about 915.1260148738.

The spelling of 766377427 in words is "seven hundred sixty-six million, three hundred seventy-seven thousand, four hundred twenty-seven".