801899845 has 16 divisors (see below), whose sum is σ = 1019652480. Its totient is φ = 603720000.

The previous prime is 801899831. The next prime is 801899893. The reversal of 801899845 is 548998108.

It is not a de Polignac number, because 801899845 - 2¹¹ = 801897797 is a prime.

It is a super-2 number, since 2×801899845² = 1286086722822048050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 801899792 and 801899801.

It is a congruent 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, 13606 + ... + 42295.

It is an arithmetic number, because the mean of its divisors is an integer number (63728280).

Almost surely, 2^801899845 is an apocalyptic number.

It is an amenable number.

801899845 is a deficient number, since it is larger than the sum of its proper divisors (217752635).

801899845 is a wasteful number, since it uses less digits than its factorization.

801899845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56076.

The product of its (nonzero) digits is 829440, while the sum is 52.

The square root of 801899845 is about 28317.8361638032. The cubic root of 801899845 is about 929.0520440516.

The spelling of 801899845 in words is "eight hundred one million, eight hundred ninety-nine thousand, eight hundred forty-five".