765966249 has 6 divisors (see below), whose sum is σ = 1106395706. Its totient is φ = 510644160.

The previous prime is 765966233. The next prime is 765966287. The reversal of 765966249 is 942669567.

765966249 is a `hidden beast` number, since 7 + 6 + 5 + 9 + 6 + 624 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 696960000 + 69006249 = 26400^2 + 8307^2 .

It is not a de Polignac number, because 765966249 - 2⁴ = 765966233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 765966195 and 765966204.

It is not an unprimeable number, because it can be changed into a prime (765964249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42553672 + ... + 42553689.

Almost surely, 2^765966249 is an apocalyptic number.

It is an amenable number.

765966249 is a deficient number, since it is larger than the sum of its proper divisors (340429457).

765966249 is a wasteful number, since it uses less digits than its factorization.

765966249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85107367 (or 85107364 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 765966249 is about 27676.0952628798. The cubic root of 765966249 is about 914.9623239884.

The spelling of 765966249 in words is "seven hundred sixty-five million, nine hundred sixty-six thousand, two hundred forty-nine".