769999873 has 2 divisors, whose sum is σ = 769999874. Its totient is φ = 769999872.

The previous prime is 769999837. The next prime is 769999897. The reversal of 769999873 is 378999967.

Together with previous prime (769999837) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 766569969 + 3429904 = 27687^2 + 1852^2 .

It is an emirp because it is prime and its reverse (378999967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769999873 - 2⁹ = 769999361 is a prime.

It is a super-2 number, since 2×769999873² = 1185799608840032258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 769999799 and 769999808.

It is not a weakly prime, because it can be changed into another prime (769999273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384999936 + 384999937.

It is an arithmetic number, because the mean of its divisors is an integer number (384999937).

Almost surely, 2^769999873 is an apocalyptic number.

It is an amenable number.

769999873 is a deficient number, since it is larger than the sum of its proper divisors (1).

769999873 is an equidigital number, since it uses as much as digits as its factorization.

769999873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46294416, while the sum is 67.

The square root of 769999873 is about 27748.8715626420. The cubic root of 769999873 is about 916.5655950417.

The spelling of 769999873 in words is "seven hundred sixty-nine million, nine hundred ninety-nine thousand, eight hundred seventy-three".