9942047 has 2 divisors, whose sum is σ = 9942048. Its totient is φ = 9942046.

The previous prime is 9942043. The next prime is 9942067. The reversal of 9942047 is 7402499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9942047 - 2² = 9942043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9941998 and 9942016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9942043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971023 + 4971024.

It is an arithmetic number, because the mean of its divisors is an integer number (4971024).

Almost surely, 2^9942047 is an apocalyptic number.

9942047 is a deficient number, since it is larger than the sum of its proper divisors (1).

9942047 is an equidigital number, since it uses as much as digits as its factorization.

9942047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 9942047 is about 3153.1011718624. The cubic root of 9942047 is about 215.0264759175.

The spelling of 9942047 in words is "nine million, nine hundred forty-two thousand, forty-seven".