3977399 has 4 divisors (see below), whose sum is σ = 3990264. Its totient is φ = 3964536.

The previous prime is 3977387. The next prime is 3977401. The reversal of 3977399 is 9937793.

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

It is a cyclic number.

It is not a de Polignac number, because 3977399 - 2¹² = 3973303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3977339) 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, 5957 + ... + 6590.

It is an arithmetic number, because the mean of its divisors is an integer number (997566).

Almost surely, 2^3977399 is an apocalyptic number.

3977399 is a deficient number, since it is larger than the sum of its proper divisors (12865).

3977399 is a wasteful number, since it uses less digits than its factorization.

3977399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12864.

The product of its digits is 321489, while the sum is 47.

The square root of 3977399 is about 1994.3417460405. The cubic root of 3977399 is about 158.4405665706.

The spelling of 3977399 in words is "three million, nine hundred seventy-seven thousand, three hundred ninety-nine".