802945 has 16 divisors (see below), whose sum is σ = 1132992. Its totient is φ = 538560.

The previous prime is 802933. The next prime is 802951. The reversal of 802945 is 549208.

It is a happy number.

It is not a de Polignac number, because 802945 - 2⁵ = 802913 is a prime.

It is a Duffinian number.

802945 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154 + ... + 1276.

It is an arithmetic number, because the mean of its divisors is an integer number (70812).

2⁸⁰²⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

802945 is a deficient number, since it is larger than the sum of its proper divisors (330047).

802945 is a wasteful number, since it uses less digits than its factorization.

802945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 802945 is about 896.0719837156. The cubic root of 802945 is about 92.9455495035.

It can be divided in two parts, 80 and 2945, that added together give a square (3025 = 55²).

The spelling of 802945 in words is "eight hundred two thousand, nine hundred forty-five".