3977507 has 6 divisors (see below), whose sum is σ = 4225548. Its totient is φ = 3743264.

The previous prime is 3977503. The next prime is 3977509. The reversal of 3977507 is 7057793.

It is a happy number.

3977507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3977507 - 2² = 3977503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3977503) 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 5 ways as a sum of consecutive naturals, for example, 6593 + ... + 7170.

It is an arithmetic number, because the mean of its divisors is an integer number (704258).

Almost surely, 2^3977507 is an apocalyptic number.

3977507 is a deficient number, since it is larger than the sum of its proper divisors (248041).

3977507 is a wasteful number, since it uses less digits than its factorization.

3977507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13797 (or 13780 counting only the distinct ones).

The product of its (nonzero) digits is 46305, while the sum is 38.

The square root of 3977507 is about 1994.3688224599. The cubic root of 3977507 is about 158.4420006256.

The spelling of 3977507 in words is "three million, nine hundred seventy-seven thousand, five hundred seven".