3721933 has 2 divisors, whose sum is σ = 3721934. Its totient is φ = 3721932.

The previous prime is 3721931. The next prime is 3721943. The reversal of 3721933 is 3391273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3617604 + 104329 = 1902^2 + 323^2 .

It is a cyclic number.

It is not a de Polignac number, because 3721933 - 2¹ = 3721931 is a prime.

Together with 3721931, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3721931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860966 + 1860967.

It is an arithmetic number, because the mean of its divisors is an integer number (1860967).

Almost surely, 2^3721933 is an apocalyptic number.

It is an amenable number.

3721933 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721933 is an equidigital number, since it uses as much as digits as its factorization.

3721933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 28.

The square root of 3721933 is about 1929.2311940252. The cubic root of 3721933 is about 154.9730511595.

The spelling of 3721933 in words is "three million, seven hundred twenty-one thousand, nine hundred thirty-three".