869232977 has 2 divisors, whose sum is σ = 869232978. Its totient is φ = 869232976.

The previous prime is 869232943. The next prime is 869232983. The reversal of 869232977 is 779232968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 791634496 + 77598481 = 28136^2 + 8809^2 .

It is a cyclic number.

It is not a de Polignac number, because 869232977 - 2¹⁶ = 869167441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (869232937) 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 as a sum of consecutive naturals, namely, 434616488 + 434616489.

It is an arithmetic number, because the mean of its divisors is an integer number (434616489).

Almost surely, 2^869232977 is an apocalyptic number.

It is an amenable number.

869232977 is a deficient number, since it is larger than the sum of its proper divisors (1).

869232977 is an equidigital number, since it uses as much as digits as its factorization.

869232977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 53.

The square root of 869232977 is about 29482.7572828594. The cubic root of 869232977 is about 954.3596401555.

Subtracting from 869232977 its reverse (779232968), we obtain a palindrome (90000009).

The spelling of 869232977 in words is "eight hundred sixty-nine million, two hundred thirty-two thousand, nine hundred seventy-seven".