3977320 has 32 divisors (see below), whose sum is σ = 9477000. Its totient is φ = 1497088.

The previous prime is 3977317. The next prime is 3977339. The reversal of 3977320 is 237793.

It can be written as a sum of positive squares in 4 ways, for example, as 3378244 + 599076 = 1838^2 + 774^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245 + ... + 3604.

Almost surely, 2^3977320 is an apocalyptic number.

It is an amenable number.

3977320 is an abundant number, since it is smaller than the sum of its proper divisors (5499680).

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

3977320 is a wasteful number, since it uses less digits than its factorization.

3977320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877 (or 5873 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 3977320 is about 1994.3219399084. The cubic root of 3977320 is about 158.4395175695.

It can be divided in two parts, 39773 and 20, that added together give a palindrome (39793).

The spelling of 3977320 in words is "three million, nine hundred seventy-seven thousand, three hundred twenty".