820367674 has 64 divisors (see below), whose sum is σ = 1604275200. Its totient is φ = 306125568.

The previous prime is 820367671. The next prime is 820367687. The reversal of 820367674 is 476763028.

It is a happy number.

820367674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 820367674.

It is not an unprimeable number, because it can be changed into a prime (820367671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192337 + ... + 196555.

It is an arithmetic number, because the mean of its divisors is an integer number (25066800).

Almost surely, 2^820367674 is an apocalyptic number.

820367674 is a deficient number, since it is larger than the sum of its proper divisors (783907526).

820367674 is a wasteful number, since it uses less digits than its factorization.

820367674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 820367674 is about 28642.0612735885. The cubic root of 820367674 is about 936.1300354134.

The spelling of 820367674 in words is "eight hundred twenty million, three hundred sixty-seven thousand, six hundred seventy-four".