861164343 has 18 divisors (see below), whose sum is σ = 1346951736. Its totient is φ = 529946352.

The previous prime is 861164329. The next prime is 861164377. The reversal of 861164343 is 343461168.

It is a happy number.

861164343 is a `hidden beast` number, since 8 + 6 + 1 + 1 + 643 + 4 + 3 = 666.

It is not a de Polignac number, because 861164343 - 2²¹ = 859067191 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 861164298 and 861164307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861164323) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 281571 + ... + 284612.

It is an arithmetic number, because the mean of its divisors is an integer number (74830652).

Almost surely, 2^861164343 is an apocalyptic number.

861164343 is a deficient number, since it is larger than the sum of its proper divisors (485787393).

861164343 is a wasteful number, since it uses less digits than its factorization.

861164343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566215 (or 566199 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 861164343 is about 29345.6017658524. The cubic root of 861164343 is about 951.3975158178.

The spelling of 861164343 in words is "eight hundred sixty-one million, one hundred sixty-four thousand, three hundred forty-three".