8722769 has 6 divisors (see below), whose sum is σ = 9587970. Its totient is φ = 7929680.

The previous prime is 8722757. The next prime is 8722789. The reversal of 8722769 is 9672278.

It can be written as a sum of positive squares in only one way, i.e., 8179600 + 543169 = 2860^2 + 737^2 .

It is not a de Polignac number, because 8722769 - 2¹² = 8718673 is a prime.

It is a super-2 number, since 2×8722769² = 152173398054722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8722739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35924 + ... + 36165.

It is an arithmetic number, because the mean of its divisors is an integer number (1597995).

Almost surely, 2^8722769 is an apocalyptic number.

It is an amenable number.

8722769 is a deficient number, since it is larger than the sum of its proper divisors (865201).

8722769 is a wasteful number, since it uses less digits than its factorization.

8722769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72111 (or 72100 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 8722769 is about 2953.4334256929. The cubic root of 8722769 is about 205.8502776714.

The spelling of 8722769 in words is "eight million, seven hundred twenty-two thousand, seven hundred sixty-nine".