3977653 has 2 divisors, whose sum is σ = 3977654. Its totient is φ = 3977652.

The previous prime is 3977647. The next prime is 3977663. The reversal of 3977653 is 3567793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2900209 + 1077444 = 1703^2 + 1038^2 .

It is an emirp because it is prime and its reverse (3567793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3977653 - 2⁵ = 3977621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3977663) 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 as a sum of consecutive naturals, namely, 1988826 + 1988827.

It is an arithmetic number, because the mean of its divisors is an integer number (1988827).

Almost surely, 2^3977653 is an apocalyptic number.

It is an amenable number.

3977653 is a deficient number, since it is larger than the sum of its proper divisors (1).

3977653 is an equidigital number, since it uses as much as digits as its factorization.

3977653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 40.

The square root of 3977653 is about 1994.4054251832. The cubic root of 3977653 is about 158.4439392142.

Subtracting from 3977653 its product of digits (119070), we obtain a palindrome (3858583).

The spelling of 3977653 in words is "three million, nine hundred seventy-seven thousand, six hundred fifty-three".