807844868 has 12 divisors (see below), whose sum is σ = 1440403020. Its totient is φ = 396301152.

The previous prime is 807844867. The next prime is 807844897. The reversal of 807844868 is 868448708.

It can be written as a sum of positive squares in 2 ways, for example, as 569204164 + 238640704 = 23858^2 + 15448^2 .

It is a super-2 number, since 2×807844868² = 1305226661507874848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (807844867) 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 in 3 ways as a sum of consecutive naturals, for example, 1905083 + ... + 1905506.

It is an arithmetic number, because the mean of its divisors is an integer number (120033585).

Almost surely, 2^807844868 is an apocalyptic number.

It is an amenable number.

807844868 is a deficient number, since it is larger than the sum of its proper divisors (632558152).

807844868 is a wasteful number, since it uses less digits than its factorization.

807844868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810646 (or 3810644 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 53.

The square root of 807844868 is about 28422.6119137563. The cubic root of 807844868 is about 931.3422895608.

The spelling of 807844868 in words is "eight hundred seven million, eight hundred forty-four thousand, eight hundred sixty-eight".