862704642 has 16 divisors (see below), whose sum is σ = 1781068032. Its totient is φ = 278291760.

The previous prime is 862704637. The next prime is 862704649. The reversal of 862704642 is 246407268.

It is a self number, because there is not a number n which added to its sum of digits gives 862704642.

It is not an unprimeable number, because it can be changed into a prime (862704649) 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, 2318913 + ... + 2319284.

It is an arithmetic number, because the mean of its divisors is an integer number (111316752).

Almost surely, 2^862704642 is an apocalyptic number.

862704642 is an abundant number, since it is smaller than the sum of its proper divisors (918363390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

862704642 is a wasteful number, since it uses less digits than its factorization.

862704642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638233.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 862704642 is about 29371.8341613186. The cubic root of 862704642 is about 951.9644086981.

The spelling of 862704642 in words is "eight hundred sixty-two million, seven hundred four thousand, six hundred forty-two".