3972413 has 2 divisors, whose sum is σ = 3972414. Its totient is φ = 3972412.

The previous prime is 3972377. The next prime is 3972427. The reversal of 3972413 is 3142793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2427364 + 1545049 = 1558^2 + 1243^2 .

It is an emirp because it is prime and its reverse (3142793) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3972413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3972113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986206 + 1986207.

It is an arithmetic number, because the mean of its divisors is an integer number (1986207).

Almost surely, 2^3972413 is an apocalyptic number.

It is an amenable number.

3972413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3972413 is an equidigital number, since it uses as much as digits as its factorization.

3972413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 29.

The square root of 3972413 is about 1993.0913175266. The cubic root of 3972413 is about 158.3743327497.

The spelling of 3972413 in words is "three million, nine hundred seventy-two thousand, four hundred thirteen".