3942977 has 2 divisors, whose sum is σ = 3942978. Its totient is φ = 3942976.

The previous prime is 3942947. The next prime is 3942989. The reversal of 3942977 is 7792493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3418801 + 524176 = 1849^2 + 724^2 .

It is a cyclic number.

It is not a de Polignac number, because 3942977 - 2⁸ = 3942721 is a prime.

It is not a weakly prime, because it can be changed into another prime (3942907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971488 + 1971489.

It is an arithmetic number, because the mean of its divisors is an integer number (1971489).

Almost surely, 2^3942977 is an apocalyptic number.

It is an amenable number.

3942977 is a deficient number, since it is larger than the sum of its proper divisors (1).

3942977 is an equidigital number, since it uses as much as digits as its factorization.

3942977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 41.

The square root of 3942977 is about 1985.6930779957. The cubic root of 3942977 is about 157.9821723196.

The spelling of 3942977 in words is "three million, nine hundred forty-two thousand, nine hundred seventy-seven".