769673987 has 2 divisors, whose sum is σ = 769673988. Its totient is φ = 769673986.

The previous prime is 769673981. The next prime is 769673999. The reversal of 769673987 is 789376967.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 769673987 - 2⁶ = 769673923 is a prime.

It is not a weakly prime, because it can be changed into another prime (769673981) 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, 384836993 + 384836994.

It is an arithmetic number, because the mean of its divisors is an integer number (384836994).

Almost surely, 2^769673987 is an apocalyptic number.

769673987 is a deficient number, since it is larger than the sum of its proper divisors (1).

769673987 is an equidigital number, since it uses as much as digits as its factorization.

769673987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24004512, while the sum is 62.

The square root of 769673987 is about 27742.9988826010. The cubic root of 769673987 is about 916.4362711917.

Adding to 769673987 its sum of digits (62), we get a square (769674049 = 27743²).

The spelling of 769673987 in words is "seven hundred sixty-nine million, six hundred seventy-three thousand, nine hundred eighty-seven".