766872787 has 2 divisors, whose sum is σ = 766872788. Its totient is φ = 766872786.

The previous prime is 766872779. The next prime is 766872797. The reversal of 766872787 is 787278667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 766872787 - 2³ = 766872779 is a prime.

It is a super-2 number, since 2×766872787² = 1176187742882294738, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (766872797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383436393 + 383436394.

It is an arithmetic number, because the mean of its divisors is an integer number (383436394).

Almost surely, 2^766872787 is an apocalyptic number.

766872787 is a deficient number, since it is larger than the sum of its proper divisors (1).

766872787 is an equidigital number, since it uses as much as digits as its factorization.

766872787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11063808, while the sum is 58.

The square root of 766872787 is about 27692.4680554117. The cubic root of 766872787 is about 915.3231410644.

The spelling of 766872787 in words is "seven hundred sixty-six million, eight hundred seventy-two thousand, seven hundred eighty-seven".