3942377 has 2 divisors, whose sum is σ = 3942378. Its totient is φ = 3942376.

The previous prime is 3942373. The next prime is 3942383. The reversal of 3942377 is 7732493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3308761 + 633616 = 1819^2 + 796^2 .

It is an emirp because it is prime and its reverse (7732493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3942377 - 2² = 3942373 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3942373) 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, 1971188 + 1971189.

It is an arithmetic number, because the mean of its divisors is an integer number (1971189).

Almost surely, 2^3942377 is an apocalyptic number.

It is an amenable number.

3942377 is a deficient number, since it is larger than the sum of its proper divisors (1).

3942377 is an equidigital number, since it uses as much as digits as its factorization.

3942377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 35.

The square root of 3942377 is about 1985.5419914975. The cubic root of 3942377 is about 157.9741585682.

The spelling of 3942377 in words is "three million, nine hundred forty-two thousand, three hundred seventy-seven".