872858953 has 4 divisors (see below), whose sum is σ = 877735440. Its totient is φ = 867982468.

The previous prime is 872858939. The next prime is 872858957. The reversal of 872858953 is 359858278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 872858953 - 2¹³ = 872850761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 872858894 and 872858903.

It is not an unprimeable number, because it can be changed into a prime (872858957) 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, 2437975 + ... + 2438332.

It is an arithmetic number, because the mean of its divisors is an integer number (219433860).

Almost surely, 2^872858953 is an apocalyptic number.

It is an amenable number.

872858953 is a deficient number, since it is larger than the sum of its proper divisors (4876487).

872858953 is a wasteful number, since it uses less digits than its factorization.

872858953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876486.

The product of its digits is 4838400, while the sum is 55.

The square root of 872858953 is about 29544.1864501292. The cubic root of 872858953 is about 955.6848255380.

The spelling of 872858953 in words is "eight hundred seventy-two million, eight hundred fifty-eight thousand, nine hundred fifty-three".