3731971 has 4 divisors (see below), whose sum is σ = 3753000. Its totient is φ = 3710944.

The previous prime is 3731969. The next prime is 3731983. The reversal of 3731971 is 1791373.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1791373 = 743 ⋅2411.

It is a cyclic number.

It is not a de Polignac number, because 3731971 - 2¹ = 3731969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3731071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10246 + ... + 10603.

It is an arithmetic number, because the mean of its divisors is an integer number (938250).

Almost surely, 2^3731971 is an apocalyptic number.

3731971 is a deficient number, since it is larger than the sum of its proper divisors (21029).

3731971 is a wasteful number, since it uses less digits than its factorization.

3731971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21028.

The product of its digits is 3969, while the sum is 31.

The square root of 3731971 is about 1931.8309967489. The cubic root of 3731971 is about 155.1122461320.

The spelling of 3731971 in words is "three million, seven hundred thirty-one thousand, nine hundred seventy-one".