4398776969 has 2 divisors, whose sum is σ = 4398776970. Its totient is φ = 4398776968.

The previous prime is 4398776951. The next prime is 4398776981. The reversal of 4398776969 is 9696778934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3948488569 + 450288400 = 62837^2 + 21220^2 .

It is a cyclic number.

It is not a de Polignac number, because 4398776969 - 2²⁰ = 4397728393 is a prime.

It is a super-2 number, since 2×4398776969² = 38698477646009653922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4398776899 and 4398776908.

It is not a weakly prime, because it can be changed into another prime (4398776909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2199388484 + 2199388485.

It is an arithmetic number, because the mean of its divisors is an integer number (2199388485).

Almost surely, 2^4398776969 is an apocalyptic number.

It is an amenable number.

4398776969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4398776969 is an equidigital number, since it uses as much as digits as its factorization.

4398776969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123451776, while the sum is 68.

The square root of 4398776969 is about 66323.2762233592. The cubic root of 4398776969 is about 1638.4907005692.

The spelling of 4398776969 in words is "four billion, three hundred ninety-eight million, seven hundred seventy-six thousand, nine hundred sixty-nine".