769989967 has 4 divisors (see below), whose sum is σ = 770157520. Its totient is φ = 769822416.

The previous prime is 769989931. The next prime is 769989971.

769989967 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-769989967 is a prime.

It is a super-2 number, since 2×769989967² = 1185769098561322178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 769989896 and 769989905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769989917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76683 + ... + 86140.

It is an arithmetic number, because the mean of its divisors is an integer number (192539380).

Almost surely, 2^769989967 is an apocalyptic number.

769989967 is a deficient number, since it is larger than the sum of its proper divisors (167553).

769989967 is a wasteful number, since it uses less digits than its factorization.

769989967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167552.

The product of its digits is 92588832, while the sum is 70.

The square root of 769989967 is about 27748.6930683231. The cubic root of 769989967 is about 916.5616645053.

The spelling of 769989967 in words is "seven hundred sixty-nine million, nine hundred eighty-nine thousand, nine hundred sixty-seven".