3197481387 has 4 divisors (see below), whose sum is σ = 4263308520. Its totient is φ = 2131654256.

The previous prime is 3197481377. The next prime is 3197481403. The reversal of 3197481387 is 7831847913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7831847913 = 3 ⋅2610615971.

It is a cyclic number.

It is not a de Polignac number, because 3197481387 - 2¹¹ = 3197479339 is a prime.

It is a super-2 number, since 2×3197481387² = 20447774440422887538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3197481307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532913562 + ... + 532913567.

It is an arithmetic number, because the mean of its divisors is an integer number (1065827130).

Almost surely, 2^3197481387 is an apocalyptic number.

3197481387 is a deficient number, since it is larger than the sum of its proper divisors (1065827133).

3197481387 is a wasteful number, since it uses less digits than its factorization.

3197481387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065827132.

The product of its digits is 1016064, while the sum is 51.

The square root of 3197481387 is about 56546.2765087145. The cubic root of 3197481387 is about 1473.2258875814.

The spelling of 3197481387 in words is "three billion, one hundred ninety-seven million, four hundred eighty-one thousand, three hundred eighty-seven".