864698 has 4 divisors (see below), whose sum is σ = 1297050. Its totient is φ = 432348.

The previous prime is 864691. The next prime is 864707. The reversal of 864698 is 896468.

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., 851929 + 12769 = 923^2 + 113^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 864698.

It is not an unprimeable number, because it can be changed into a prime (864691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216173 + ... + 216176.

2⁸⁶⁴⁶⁹⁸ is an apocalyptic number.

864698 is a deficient number, since it is larger than the sum of its proper divisors (432352).

864698 is a wasteful number, since it uses less digits than its factorization.

864698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432351.

The product of its digits is 82944, while the sum is 41.

The square root of 864698 is about 929.8913915076. The cubic root of 864698 is about 95.2697044999.

The spelling of 864698 in words is "eight hundred sixty-four thousand, six hundred ninety-eight".