8125969 has 6 divisors (see below), whose sum is σ = 8495186. Its totient is φ = 7772160.

The previous prime is 8125951. The next prime is 8125973. The reversal of 8125969 is 9695218.

It can be written as a sum of positive squares in only one way, i.e., 7617600 + 508369 = 2760^2 + 713^2 .

It is not a de Polignac number, because 8125969 - 2⁹ = 8125457 is a prime.

It is a super-2 number, since 2×8125969² = 132062744377922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8125669) 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, 7152 + ... + 8209.

Almost surely, 2^8125969 is an apocalyptic number.

It is an amenable number.

8125969 is a deficient number, since it is larger than the sum of its proper divisors (369217).

8125969 is a wasteful number, since it uses less digits than its factorization.

8125969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15407 (or 15384 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 8125969 is about 2850.6085315245. The cubic root of 8125969 is about 201.0442795774.

The spelling of 8125969 in words is "eight million, one hundred twenty-five thousand, nine hundred sixty-nine".