769823989 has 8 divisors (see below), whose sum is σ = 846220320. Its totient is φ = 694496400.

The previous prime is 769823983. The next prime is 769824017. The reversal of 769823989 is 989328967.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 769823989 - 2⁷ = 769823861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769823983) 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 in 7 ways as a sum of consecutive naturals, for example, 265674 + ... + 268555.

It is an arithmetic number, because the mean of its divisors is an integer number (105777540).

Almost surely, 2^769823989 is an apocalyptic number.

It is an amenable number.

769823989 is a deficient number, since it is larger than the sum of its proper divisors (76396331).

769823989 is a wasteful number, since it uses less digits than its factorization.

769823989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534371.

The product of its digits is 11757312, while the sum is 61.

The square root of 769823989 is about 27745.7021716878. The cubic root of 769823989 is about 916.4958021734.

The spelling of 769823989 in words is "seven hundred sixty-nine million, eight hundred twenty-three thousand, nine hundred eighty-nine".