865261394 has 16 divisors (see below), whose sum is σ = 1328917920. Its totient is φ = 422301600.

The previous prime is 865261381. The next prime is 865261459. The reversal of 865261394 is 493162568.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243422 + ... + 246950.

It is an arithmetic number, because the mean of its divisors is an integer number (83057370).

Almost surely, 2^865261394 is an apocalyptic number.

865261394 is a deficient number, since it is larger than the sum of its proper divisors (463656526).

865261394 is a wasteful number, since it uses less digits than its factorization.

865261394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6425.

The product of its digits is 311040, while the sum is 44.

The square root of 865261394 is about 29415.3258353532. The cubic root of 865261394 is about 952.9039100042.

The spelling of 865261394 in words is "eight hundred sixty-five million, two hundred sixty-one thousand, three hundred ninety-four".