3986768197 has 4 divisors (see below), whose sum is σ = 3986944960. Its totient is φ = 3986591436.

The previous prime is 3986768183. The next prime is 3986768221. The reversal of 3986768197 is 7918676893.

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 3986768197 - 2²³ = 3978379589 is a prime.

It is a super-2 number, since 2×3986768197² = 31788641313221261618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986766197) 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, 48573 + ... + 101650.

It is an arithmetic number, because the mean of its divisors is an integer number (996736240).

Almost surely, 2^3986768197 is an apocalyptic number.

It is an amenable number.

3986768197 is a deficient number, since it is larger than the sum of its proper divisors (176763).

3986768197 is a wasteful number, since it uses less digits than its factorization.

3986768197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176762.

The product of its digits is 27433728, while the sum is 64.

The square root of 3986768197 is about 63140.8599640518. The cubic root of 3986768197 is about 1585.6487702248.

The spelling of 3986768197 in words is "three billion, nine hundred eighty-six million, seven hundred sixty-eight thousand, one hundred ninety-seven".