3976139 has 4 divisors (see below), whose sum is σ = 4073160. Its totient is φ = 3879120.

The previous prime is 3976129. The next prime is 3976169. The reversal of 3976139 is 9316793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9316793 = 1163 ⋅8011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3976139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3976129) 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, 48449 + ... + 48530.

It is an arithmetic number, because the mean of its divisors is an integer number (1018290).

Almost surely, 2^3976139 is an apocalyptic number.

3976139 is a deficient number, since it is larger than the sum of its proper divisors (97021).

3976139 is an equidigital number, since it uses as much as digits as its factorization.

3976139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97020.

The product of its digits is 30618, while the sum is 38.

The square root of 3976139 is about 1994.0258273152. The cubic root of 3976139 is about 158.4238340109.

The spelling of 3976139 in words is "three million, nine hundred seventy-six thousand, one hundred thirty-nine".