3796921 has 2 divisors, whose sum is σ = 3796922. Its totient is φ = 3796920.

The previous prime is 3796907. The next prime is 3796927. The reversal of 3796921 is 1296973.

It is the 796-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3013696 + 783225 = 1736^2 + 885^2 .

It is an emirp because it is prime and its reverse (1296973) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3796921 is a prime.

3796921 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3796927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1898460 + 1898461.

It is an arithmetic number, because the mean of its divisors is an integer number (1898461).

Almost surely, 2^3796921 is an apocalyptic number.

It is an amenable number.

3796921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3796921 is an equidigital number, since it uses as much as digits as its factorization.

3796921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 37.

The square root of 3796921 is about 1948.5689620847. The cubic root of 3796921 is about 156.0069167435.

The spelling of 3796921 in words is "three million, seven hundred ninety-six thousand, nine hundred twenty-one".