872617153 has 4 divisors (see below), whose sum is σ = 872751060. Its totient is φ = 872483248.

The previous prime is 872617117. The next prime is 872617183. The reversal of 872617153 is 351716278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61905424 + 810711729 = 7868^2 + 28473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872617153 is a prime.

It is a super-2 number, since 2×872617153² = 1522921391419650818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872617183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56650 + ... + 70387.

It is an arithmetic number, because the mean of its divisors is an integer number (218187765).

Almost surely, 2^872617153 is an apocalyptic number.

It is an amenable number.

872617153 is a deficient number, since it is larger than the sum of its proper divisors (133907).

872617153 is a wasteful number, since it uses less digits than its factorization.

872617153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133906.

The product of its digits is 70560, while the sum is 40.

The square root of 872617153 is about 29540.0939910488. The cubic root of 872617153 is about 955.5965692274.

The spelling of 872617153 in words is "eight hundred seventy-two million, six hundred seventeen thousand, one hundred fifty-three".