765296897 has 4 divisors (see below), whose sum is σ = 772874196. Its totient is φ = 757719600.

The previous prime is 765296893. The next prime is 765296927. The reversal of 765296897 is 798692567.

It is a Cunningham number, because it is equal to 27664²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798692567 = 29 ⋅27541123.

It can be written as a sum of positive squares in 2 ways, for example, as 735277456 + 30019441 = 27116^2 + 5479^2 .

It is a cyclic number.

It is not a de Polignac number, because 765296897 - 2² = 765296893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (765296893) 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, 3788498 + ... + 3788699.

It is an arithmetic number, because the mean of its divisors is an integer number (193218549).

Almost surely, 2^765296897 is an apocalyptic number.

It is an amenable number.

765296897 is a deficient number, since it is larger than the sum of its proper divisors (7577299).

765296897 is a wasteful number, since it uses less digits than its factorization.

765296897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577298.

The product of its digits is 11430720, while the sum is 59.

The square root of 765296897 is about 27664.0000180740. Note that the first 4 decimals coincide. The cubic root of 765296897 is about 914.6957281066.

The spelling of 765296897 in words is "seven hundred sixty-five million, two hundred ninety-six thousand, eight hundred ninety-seven".