3977009 has 4 divisors (see below), whose sum is σ = 3981120. Its totient is φ = 3972900.

The previous prime is 3977003. The next prime is 3977011. The reversal of 3977009 is 9007793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3977009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3977009.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (995280).

Almost surely, 2^3977009 is an apocalyptic number.

It is an amenable number.

3977009 is a deficient number, since it is larger than the sum of its proper divisors (4111).

3977009 is a wasteful number, since it uses less digits than its factorization.

3977009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110.

The product of its (nonzero) digits is 11907, while the sum is 35.

The square root of 3977009 is about 1994.2439670211. The cubic root of 3977009 is about 158.4353878227.

The spelling of 3977009 in words is "three million, nine hundred seventy-seven thousand, nine".