802104945 has 16 divisors (see below), whose sum is σ = 1298832192. Its totient is φ = 422634560.

The previous prime is 802104923. The next prime is 802104977. The reversal of 802104945 is 549401208.

It is not a de Polignac number, because 802104945 - 2¹⁰ = 802103921 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320886 + ... + 323375.

It is an arithmetic number, because the mean of its divisors is an integer number (81177012).

Almost surely, 2^802104945 is an apocalyptic number.

It is an amenable number.

802104945 is a deficient number, since it is larger than the sum of its proper divisors (496727247).

802104945 is a wasteful number, since it uses less digits than its factorization.

802104945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644352.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 802104945 is about 28321.4573247917. The cubic root of 802104945 is about 929.1312444374.

The spelling of 802104945 in words is "eight hundred two million, one hundred four thousand, nine hundred forty-five".