3179681 has 4 divisors (see below), whose sum is σ = 3317952. Its totient is φ = 3041412.

The previous prime is 3179653. The next prime is 3179689. The reversal of 3179681 is 1869713.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1869713 = 157 ⋅11909.

It is a cyclic number.

It is not a de Polignac number, because 3179681 - 2¹⁴ = 3163297 is a prime.

It is a super-2 number, since 2×3179681² = 20220742523522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3179689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69101 + ... + 69146.

It is an arithmetic number, because the mean of its divisors is an integer number (829488).

Almost surely, 2^3179681 is an apocalyptic number.

It is an amenable number.

3179681 is a deficient number, since it is larger than the sum of its proper divisors (138271).

3179681 is a wasteful number, since it uses less digits than its factorization.

3179681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138270.

The product of its digits is 9072, while the sum is 35.

The square root of 3179681 is about 1783.1660046109. The cubic root of 3179681 is about 147.0486981358.

The spelling of 3179681 in words is "three million, one hundred seventy-nine thousand, six hundred eighty-one".