803983015801 has 45 divisors (see below), whose sum is σ = 972923717103. Its totient is φ = 664310792880.

The previous prime is 803983015799. The next prime is 803983015817. The reversal of 803983015801 is 108510389308.

The square root of 803983015801 is 896651.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 421589191401 + 382393824400 = 649299^2 + 618380^2 .

It is not a de Polignac number, because 803983015801 - 2¹ = 803983015799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (803983015861) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1274140756 + ... + 1274141386.

Almost surely, 2^803983015801 is an apocalyptic number.

803983015801 is the 896651-st square number.

803983015801 is the 448326-th centered octagonal number.

It is an amenable number.

803983015801 is a deficient number, since it is larger than the sum of its proper divisors (168940701302).

803983015801 is an frugal number, since it uses more digits than its factorization.

803983015801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 803983015801 in words is "eight hundred three billion, nine hundred eighty-three million, fifteen thousand, eight hundred one".