872589117 has 16 divisors (see below), whose sum is σ = 1236584960. Its totient is φ = 545754672.

The previous prime is 872589089. The next prime is 872589119. The reversal of 872589117 is 711985278.

It is a happy number.

It is not a de Polignac number, because 872589117 - 2⁷ = 872588989 is a prime.

It is a super-2 number, since 2×872589117² = 1522823534213679378, 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 (872589119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68443 + ... + 80184.

It is an arithmetic number, because the mean of its divisors is an integer number (77286560).

Almost surely, 2^872589117 is an apocalyptic number.

It is an amenable number.

872589117 is a deficient number, since it is larger than the sum of its proper divisors (363995843).

872589117 is a wasteful number, since it uses less digits than its factorization.

872589117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148752.

The product of its digits is 282240, while the sum is 48.

The square root of 872589117 is about 29539.6194457545. The cubic root of 872589117 is about 955.5863351126.

The spelling of 872589117 in words is "eight hundred seventy-two million, five hundred eighty-nine thousand, one hundred seventeen".