8403197305 has 4 divisors (see below), whose sum is σ = 10083836772. Its totient is φ = 6722557840.

The previous prime is 8403197287. The next prime is 8403197321. The reversal of 8403197305 is 5037913048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6082752064 + 2320445241 = 77992^2 + 48171^2 .

It is not a de Polignac number, because 8403197305 - 2²⁷ = 8268979577 is a prime.

It is a super-2 number, since 2×8403197305² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840319726 + ... + 840319735.

It is an arithmetic number, because the mean of its divisors is an integer number (2520959193).

Almost surely, 2^8403197305 is an apocalyptic number.

It is an amenable number.

8403197305 is a deficient number, since it is larger than the sum of its proper divisors (1680639467).

8403197305 is a wasteful number, since it uses less digits than its factorization.

8403197305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680639466.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 8403197305 is about 91668.9549684079. The cubic root of 8403197305 is about 2033.0505959253.

The spelling of 8403197305 in words is "eight billion, four hundred three million, one hundred ninety-seven thousand, three hundred five".