769876993 has 4 divisors (see below), whose sum is σ = 784403028. Its totient is φ = 755350960.

The previous prime is 769876963. The next prime is 769877021. The reversal of 769876993 is 399678967.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 572979969 + 196897024 = 23937^2 + 14032^2 .

It is a cyclic number.

It is not a de Polignac number, because 769876993 - 2²¹ = 767779841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (769876963) 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 in 3 ways as a sum of consecutive naturals, for example, 7262938 + ... + 7263043.

It is an arithmetic number, because the mean of its divisors is an integer number (196100757).

Almost surely, 2^769876993 is an apocalyptic number.

It is an amenable number.

769876993 is a deficient number, since it is larger than the sum of its proper divisors (14526035).

769876993 is a wasteful number, since it uses less digits than its factorization.

769876993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14526034.

The product of its digits is 30862944, while the sum is 64.

The square root of 769876993 is about 27746.6573302083. The cubic root of 769876993 is about 916.5168359116.

The spelling of 769876993 in words is "seven hundred sixty-nine million, eight hundred seventy-six thousand, nine hundred ninety-three".