804951 has 16 divisors (see below), whose sum is σ = 1363200. Its totient is φ = 459864.

The previous prime is 804943. The next prime is 804983. The reversal of 804951 is 159408.

It is not a de Polignac number, because 804951 - 2³ = 804943 is a prime.

It is a super-2 number, since 2×804951² = 1295892224802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 804951.

It is not an unprimeable number, because it can be changed into a prime (804901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1941 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (85200).

2⁸⁰⁴⁹⁵¹ is an apocalyptic number.

804951 is a deficient number, since it is larger than the sum of its proper divisors (558249).

804951 is a wasteful number, since it uses less digits than its factorization.

804951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275 (or 4269 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 804951 is about 897.1906151984. The cubic root of 804951 is about 93.0228871870.

It can be divided in two parts, 8049 and 51, that added together give a square (8100 = 90²).

The spelling of 804951 in words is "eight hundred four thousand, nine hundred fifty-one".