862448891 has 4 divisors (see below), whose sum is σ = 867213984. Its totient is φ = 857683800.

The previous prime is 862448869. The next prime is 862448897. The reversal of 862448891 is 198844268.

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

It is a cyclic number.

It is not a de Polignac number, because 862448891 - 2²⁶ = 795340027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (862448897) 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, 2382275 + ... + 2382636.

It is an arithmetic number, because the mean of its divisors is an integer number (216803496).

Almost surely, 2^862448891 is an apocalyptic number.

862448891 is a deficient number, since it is larger than the sum of its proper divisors (4765093).

862448891 is a wasteful number, since it uses less digits than its factorization.

862448891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765092.

The product of its digits is 884736, while the sum is 50.

The square root of 862448891 is about 29367.4801608854. The cubic root of 862448891 is about 951.8703286386.

The spelling of 862448891 in words is "eight hundred sixty-two million, four hundred forty-eight thousand, eight hundred ninety-one".