8003909797 has 12 divisors (see below), whose sum is σ = 8671277124. Its totient is φ = 7384540800.

The previous prime is 8003909779. The next prime is 8003909801. The reversal of 8003909797 is 7979093008.

It can be written as a sum of positive squares in 6 ways, for example, as 297528001 + 7706381796 = 17249^2 + 87786^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8003909797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8003909707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363297 + ... + 384697.

It is an arithmetic number, because the mean of its divisors is an integer number (722606427).

Almost surely, 2^8003909797 is an apocalyptic number.

It is an amenable number.

8003909797 is a deficient number, since it is larger than the sum of its proper divisors (667367327).

8003909797 is a wasteful number, since it uses less digits than its factorization.

8003909797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23640 (or 23627 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 8003909797 is about 89464.5728598757. The cubic root of 8003909797 is about 2000.3257633529.

The spelling of 8003909797 in words is "eight billion, three million, nine hundred nine thousand, seven hundred ninety-seven".