3942047 has 2 divisors, whose sum is σ = 3942048. Its totient is φ = 3942046.

The previous prime is 3942041. The next prime is 3942061. The reversal of 3942047 is 7402493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3942047 - 2¹² = 3937951 is a prime.

It is a Chen prime.

It is equal to p₂₇₉₃₈₀ and since 3942047 and 279380 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3942041) 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, 1971023 + 1971024.

It is an arithmetic number, because the mean of its divisors is an integer number (1971024).

Almost surely, 2^3942047 is an apocalyptic number.

3942047 is a deficient number, since it is larger than the sum of its proper divisors (1).

3942047 is an equidigital number, since it uses as much as digits as its factorization.

3942047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 3942047 is about 1985.4588890229. The cubic root of 3942047 is about 157.9697506584.

The spelling of 3942047 in words is "three million, nine hundred forty-two thousand, forty-seven".