801955 has 16 divisors (see below), whose sum is σ = 1200384. Its totient is φ = 499680.

The previous prime is 801949. The next prime is 801959. The reversal of 801955 is 559108.

801955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 801955 - 2³ = 801947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801959) 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, 657 + ... + 1426.

It is an arithmetic number, because the mean of its divisors is an integer number (75024).

2⁸⁰¹⁹⁵⁵ is an apocalyptic number.

801955 is a deficient number, since it is larger than the sum of its proper divisors (398429).

801955 is a wasteful number, since it uses less digits than its factorization.

801955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 801955 is about 895.5194023582. The cubic root of 801955 is about 92.9073343757.

It can be divided in two parts, 80195 and 5, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 801955 in words is "eight hundred one thousand, nine hundred fifty-five".