3977007 has 4 divisors (see below), whose sum is σ = 5302680. Its totient is φ = 2651336.

The previous prime is 3977003. The next prime is 3977011. The reversal of 3977007 is 7007793.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3977003) and next prime (3977011).

It is a cyclic number.

It is not a de Polignac number, because 3977007 - 2² = 3977003 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3977003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662832 + ... + 662837.

It is an arithmetic number, because the mean of its divisors is an integer number (1325670).

Almost surely, 2^3977007 is an apocalyptic number.

3977007 is a deficient number, since it is larger than the sum of its proper divisors (1325673).

3977007 is a wasteful number, since it uses less digits than its factorization.

3977007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325672.

The product of its (nonzero) digits is 9261, while the sum is 33.

The square root of 3977007 is about 1994.2434655779. The cubic root of 3977007 is about 158.4353612641.

The spelling of 3977007 in words is "three million, nine hundred seventy-seven thousand, seven".