872749471 has 8 divisors (see below), whose sum is σ = 958482000. Its totient is φ = 788082240.

The previous prime is 872749469. The next prime is 872749483. The reversal of 872749471 is 174947278.

It is a happy number.

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

It is not a de Polignac number, because 872749471 - 2¹ = 872749469 is a prime.

It is a super-3 number, since 3×872749471³ (a number of 28 digits) contains 333 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 (872749441) 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, 264606 + ... + 267883.

It is an arithmetic number, because the mean of its divisors is an integer number (119810250).

Almost surely, 2^872749471 is an apocalyptic number.

872749471 is a deficient number, since it is larger than the sum of its proper divisors (85732529).

872749471 is a wasteful number, since it uses less digits than its factorization.

872749471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532649.

The product of its digits is 790272, while the sum is 49.

The square root of 872749471 is about 29542.3335401928. Note that the first 3 decimals coincide. The cubic root of 872749471 is about 955.6448669397.

The spelling of 872749471 in words is "eight hundred seventy-two million, seven hundred forty-nine thousand, four hundred seventy-one".