3793921 has 2 divisors, whose sum is σ = 3793922. Its totient is φ = 3793920.

The previous prime is 3793903. The next prime is 3793927. The reversal of 3793921 is 1293973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3385600 + 408321 = 1840^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 3793921 - 2¹¹ = 3791873 is a prime.

It is not a weakly prime, because it can be changed into another prime (3793927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1896960 + 1896961.

It is an arithmetic number, because the mean of its divisors is an integer number (1896961).

Almost surely, 2^3793921 is an apocalyptic number.

It is an amenable number.

3793921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3793921 is an equidigital number, since it uses as much as digits as its factorization.

3793921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 34.

The square root of 3793921 is about 1947.7990142723. The cubic root of 3793921 is about 155.9658181738.

The spelling of 3793921 in words is "three million, seven hundred ninety-three thousand, nine hundred twenty-one".