3893971 has 2 divisors, whose sum is σ = 3893972. Its totient is φ = 3893970.

The previous prime is 3893959. The next prime is 3893977. The reversal of 3893971 is 1793983.

It is a strong prime.

It is an emirp because it is prime and its reverse (1793983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3893971 - 2¹³ = 3885779 is a prime.

It is not a weakly prime, because it can be changed into another prime (3893977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1946985 + 1946986.

It is an arithmetic number, because the mean of its divisors is an integer number (1946986).

Almost surely, 2^3893971 is an apocalyptic number.

3893971 is a deficient number, since it is larger than the sum of its proper divisors (1).

3893971 is an equidigital number, since it uses as much as digits as its factorization.

3893971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 40.

The square root of 3893971 is about 1973.3147240114. The cubic root of 3893971 is about 157.3249386062.

The spelling of 3893971 in words is "three million, eight hundred ninety-three thousand, nine hundred seventy-one".