805972 has 6 divisors (see below), whose sum is σ = 1410458. Its totient is φ = 402984.

The previous prime is 805967. The next prime is 805991. The reversal of 805972 is 279508.

It can be written as a sum of positive squares in only one way, i.e., 712336 + 93636 = 844^2 + 306^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100743 + ... + 100750.

2⁸⁰⁵⁹⁷² is an apocalyptic number.

It is an amenable number.

805972 is a deficient number, since it is larger than the sum of its proper divisors (604486).

805972 is a wasteful number, since it uses less digits than its factorization.

805972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201497 (or 201495 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 805972 is about 897.7594332559. The cubic root of 805972 is about 93.0622006525.

The spelling of 805972 in words is "eight hundred five thousand, nine hundred seventy-two".