801662913 has 20 divisors (see below), whose sum is σ = 1217850480. Its totient is φ = 525380472.

The previous prime is 801662909. The next prime is 801662929. The reversal of 801662913 is 319266108.

801662913 is a `hidden beast` number, since 8 + 0 + 16 + 629 + 13 = 666.

It is not a de Polignac number, because 801662913 - 2² = 801662909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (801662903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 79095 + ... + 88652.

It is an arithmetic number, because the mean of its divisors is an integer number (60892524).

Almost surely, 2^801662913 is an apocalyptic number.

It is an amenable number.

801662913 is a deficient number, since it is larger than the sum of its proper divisors (416187567).

801662913 is a wasteful number, since it uses less digits than its factorization.

801662913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167818 (or 167809 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 801662913 is about 28313.6524136325. The cubic root of 801662913 is about 928.9605347677.

The spelling of 801662913 in words is "eight hundred one million, six hundred sixty-two thousand, nine hundred thirteen".