3613494197 has 2 divisors, whose sum is σ = 3613494198. Its totient is φ = 3613494196.

The previous prime is 3613494191. The next prime is 3613494229. The reversal of 3613494197 is 7914943163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3043287556 + 570206641 = 55166^2 + 23879^2 .

It is a cyclic number.

It is not a de Polignac number, because 3613494197 - 2⁶ = 3613494133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3613494191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806747098 + 1806747099.

It is an arithmetic number, because the mean of its divisors is an integer number (1806747099).

Almost surely, 2^3613494197 is an apocalyptic number.

It is an amenable number.

3613494197 is a deficient number, since it is larger than the sum of its proper divisors (1).

3613494197 is an equidigital number, since it uses as much as digits as its factorization.

3613494197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 47.

The square root of 3613494197 is about 60112.3464606066. The cubic root of 3613494197 is about 1534.5314271807.

The spelling of 3613494197 in words is "three billion, six hundred thirteen million, four hundred ninety-four thousand, one hundred ninety-seven".