3961503197 has 4 divisors (see below), whose sum is σ = 3990003360. Its totient is φ = 3933003036.

The previous prime is 3961503181. The next prime is 3961503199. The reversal of 3961503197 is 7913051693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3961503197 - 2⁴ = 3961503181 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 (3961503199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14249873 + ... + 14250150.

It is an arithmetic number, because the mean of its divisors is an integer number (997500840).

Almost surely, 2^3961503197 is an apocalyptic number.

It is an amenable number.

3961503197 is a deficient number, since it is larger than the sum of its proper divisors (28500163).

3961503197 is a wasteful number, since it uses less digits than its factorization.

3961503197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28500162.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 3961503197 is about 62940.4734411809. The cubic root of 3961503197 is about 1582.2921382101.

The spelling of 3961503197 in words is "three billion, nine hundred sixty-one million, five hundred three thousand, one hundred ninety-seven".