847865340 has 96 divisors (see below), whose sum is σ = 3014645760. Its totient is φ = 193796928.

The previous prime is 847865311. The next prime is 847865419. The reversal of 847865340 is 43568748.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108372 + ... + 115931.

It is an arithmetic number, because the mean of its divisors is an integer number (31402560).

Almost surely, 2^847865340 is an apocalyptic number.

It is an amenable number.

847865340 is an abundant number, since it is smaller than the sum of its proper divisors (2166780420).

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

847865340 is a wasteful number, since it uses less digits than its factorization.

847865340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224328 (or 224320 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 847865340 is about 29118.1273436325. The cubic root of 847865340 is about 946.4745937660.

The spelling of 847865340 in words is "eight hundred forty-seven million, eight hundred sixty-five thousand, three hundred forty".