804276866 has 4 divisors (see below), whose sum is σ = 1206415302. Its totient is φ = 402138432.

The previous prime is 804276829. The next prime is 804276871. The reversal of 804276866 is 668672408.

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., 684921241 + 119355625 = 26171^2 + 10925^2 .

It is a super-2 number, since 2×804276866² = 1293722554365563912, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 804276866.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201069215 + ... + 201069218.

Almost surely, 2^804276866 is an apocalyptic number.

804276866 is a deficient number, since it is larger than the sum of its proper divisors (402138436).

804276866 is a wasteful number, since it uses less digits than its factorization.

804276866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402138435.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 804276866 is about 28359.7754927644. The cubic root of 804276866 is about 929.9691152498.

The spelling of 804276866 in words is "eight hundred four million, two hundred seventy-six thousand, eight hundred sixty-six".