864045794 has 4 divisors (see below), whose sum is σ = 1296068694. Its totient is φ = 432022896.

The previous prime is 864045769. The next prime is 864045797. The reversal of 864045794 is 497540468.

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

It can be written as a sum of positive squares in only one way, i.e., 793267225 + 70778569 = 28165^2 + 8413^2 .

It is not an unprimeable number, because it can be changed into a prime (864045797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216011447 + ... + 216011450.

Almost surely, 2^864045794 is an apocalyptic number.

864045794 is a deficient number, since it is larger than the sum of its proper divisors (432022900).

864045794 is a wasteful number, since it uses less digits than its factorization.

864045794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432022899.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 864045794 is about 29394.6558748355. The cubic root of 864045794 is about 952.4574580697.

The spelling of 864045794 in words is "eight hundred sixty-four million, forty-five thousand, seven hundred ninety-four".