847863240 has 64 divisors (see below), whose sum is σ = 2906962560. Its totient is φ = 193797120.

The previous prime is 847863197. The next prime is 847863241. The reversal of 847863240 is 42368748.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 847863192 and 847863201.

It is not an unprimeable number, because it can be changed into a prime (847863241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503841 + ... + 505520.

It is an arithmetic number, because the mean of its divisors is an integer number (45421290).

Almost surely, 2^847863240 is an apocalyptic number.

It is an amenable number.

847863240 is an abundant number, since it is smaller than the sum of its proper divisors (2059099320).

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

847863240 is a wasteful number, since it uses less digits than its factorization.

847863240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009382 (or 1009378 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 847863240 is about 29118.0912835989. The cubic root of 847863240 is about 946.4738123533.

The spelling of 847863240 in words is "eight hundred forty-seven million, eight hundred sixty-three thousand, two hundred forty".