865864414 has 4 divisors (see below), whose sum is σ = 1298796624. Its totient is φ = 432932206.

The previous prime is 865864403. The next prime is 865864423. The reversal of 865864414 is 414468568.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216466102 + ... + 216466105.

It is an arithmetic number, because the mean of its divisors is an integer number (324699156).

Almost surely, 2^865864414 is an apocalyptic number.

865864414 is a deficient number, since it is larger than the sum of its proper divisors (432932210).

865864414 is a wasteful number, since it uses less digits than its factorization.

865864414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432932209.

The product of its digits is 737280, while the sum is 46.

The square root of 865864414 is about 29425.5741490289. The cubic root of 865864414 is about 953.1252252749.

The spelling of 865864414 in words is "eight hundred sixty-five million, eight hundred sixty-four thousand, four hundred fourteen".