3971764 has 6 divisors (see below), whose sum is σ = 6950594. Its totient is φ = 1985880.

The previous prime is 3971749. The next prime is 3971791. The reversal of 3971764 is 4671793.

It can be written as a sum of positive squares in only one way, i.e., 3960100 + 11664 = 1990^2 + 108^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496467 + ... + 496474.

Almost surely, 2^3971764 is an apocalyptic number.

It is an amenable number.

3971764 is a deficient number, since it is larger than the sum of its proper divisors (2978830).

3971764 is a wasteful number, since it uses less digits than its factorization.

3971764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992945 (or 992943 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 3971764 is about 1992.9284984665. The cubic root of 3971764 is about 158.3657073844.

The spelling of 3971764 in words is "three million, nine hundred seventy-one thousand, seven hundred sixty-four".