3977231 has 4 divisors (see below), whose sum is σ = 3981264. Its totient is φ = 3973200.

The previous prime is 3977219. The next prime is 3977243. The reversal of 3977231 is 1327793.

3977231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (3977219) and next prime (3977243).

It is a cyclic number.

It is not a de Polignac number, because 3977231 - 2¹⁰ = 3976207 is a prime.

It is a super-2 number, since 2×3977231² = 31636732854722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3977431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566 + ... + 2876.

It is an arithmetic number, because the mean of its divisors is an integer number (995316).

Almost surely, 2^3977231 is an apocalyptic number.

3977231 is a deficient number, since it is larger than the sum of its proper divisors (4033).

3977231 is a wasteful number, since it uses less digits than its factorization.

3977231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032.

The product of its digits is 7938, while the sum is 32.

The square root of 3977231 is about 1994.2996264353. The cubic root of 3977231 is about 158.4383357669.

The spelling of 3977231 in words is "three million, nine hundred seventy-seven thousand, two hundred thirty-one".