801965 has 8 divisors (see below), whose sum is σ = 972000. Its totient is φ = 635152.

The previous prime is 801959. The next prime is 801973. The reversal of 801965 is 569108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 801965 - 2⁴ = 801949 is a prime.

It is a super-2 number, since 2×801965² = 1286295722450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (121500).

2⁸⁰¹⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

801965 is a deficient number, since it is larger than the sum of its proper divisors (170035).

801965 is a wasteful number, since it uses less digits than its factorization.

801965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 801965 is about 895.5249856927. The cubic root of 801965 is about 92.9077205443.

The spelling of 801965 in words is "eight hundred one thousand, nine hundred sixty-five".