804156 has 24 divisors (see below), whose sum is σ = 1975680. Its totient is φ = 253872.

The previous prime is 804127. The next prime is 804157. The reversal of 804156 is 651408.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804156.

It is not an unprimeable number, because it can be changed into a prime (804157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536 + ... + 1991.

It is an arithmetic number, because the mean of its divisors is an integer number (82320).

2⁸⁰⁴¹⁵⁶ is an apocalyptic number.

It is an amenable number.

804156 is an abundant number, since it is smaller than the sum of its proper divisors (1171524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

804156 is a wasteful number, since it uses less digits than its factorization.

804156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3551 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 804156 is about 896.7474560878. The cubic root of 804156 is about 92.9922527944.

The spelling of 804156 in words is "eight hundred four thousand, one hundred fifty-six".