3994933 has 2 divisors, whose sum is σ = 3994934. Its totient is φ = 3994932.

The previous prime is 3994931. The next prime is 3994937. The reversal of 3994933 is 3394993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3232804 + 762129 = 1798^2 + 873^2 .

It is a cyclic number.

It is not a de Polignac number, because 3994933 - 2¹ = 3994931 is a prime.

Together with 3994931, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3994931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997466 + 1997467.

It is an arithmetic number, because the mean of its divisors is an integer number (1997467).

Almost surely, 2^3994933 is an apocalyptic number.

It is an amenable number.

3994933 is a deficient number, since it is larger than the sum of its proper divisors (1).

3994933 is an equidigital number, since it uses as much as digits as its factorization.

3994933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78732, while the sum is 40.

The square root of 3994933 is about 1998.7328485818. The cubic root of 3994933 is about 158.6730488649.

The spelling of 3994933 in words is "three million, nine hundred ninety-four thousand, nine hundred thirty-three".