3977328 has 80 divisors (see below), whose sum is σ = 10999296. Its totient is φ = 1236480.

The previous prime is 3977317. The next prime is 3977339. The reversal of 3977328 is 8237793.

It is an interprime number because it is at equal distance from previous prime (3977317) and next prime (3977339).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84601 + ... + 84647.

Almost surely, 2^3977328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3977328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5499648).

3977328 is an abundant number, since it is smaller than the sum of its proper divisors (7021968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3977328 is a wasteful number, since it uses less digits than its factorization.

3977328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 136 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 3977328 is about 1994.3239456016. The cubic root of 3977328 is about 158.4396237981.

The spelling of 3977328 in words is "three million, nine hundred seventy-seven thousand, three hundred twenty-eight".