872468669 has 8 divisors (see below), whose sum is σ = 889802712. Its totient is φ = 855167040.

The previous prime is 872468651. The next prime is 872468671. The reversal of 872468669 is 966864278.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 605799769 + 266668900 = 24613^2 + 16330^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 872468669 - 2¹² = 872464573 is a prime.

It is a super-2 number, since 2×872468669² = 1522403156773263122, 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 (872468609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50399 + ... + 65459.

It is an arithmetic number, because the mean of its divisors is an integer number (111225339).

Almost surely, 2^872468669 is an apocalyptic number.

It is an amenable number.

872468669 is a deficient number, since it is larger than the sum of its proper divisors (17334043).

872468669 is a wasteful number, since it uses less digits than its factorization.

872468669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16207.

The product of its digits is 6967296, while the sum is 56.

The square root of 872468669 is about 29537.5806219805. The cubic root of 872468669 is about 955.5423649107.

The spelling of 872468669 in words is "eight hundred seventy-two million, four hundred sixty-eight thousand, six hundred sixty-nine".