2042347 has 2 divisors, whose sum is σ = 2042348. Its totient is φ = 2042346.

The previous prime is 2042323. The next prime is 2042353. The reversal of 2042347 is 7432402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042347 is a prime.

It is a Chen prime.

2042347 is a lucky number.

It is equal to p₁₅₁₈₇₀ and since 2042347 and 151870 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2042317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021173 + 1021174.

It is an arithmetic number, because the mean of its divisors is an integer number (1021174).

2^2042347 is an apocalyptic number.

2042347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042347 is an equidigital number, since it uses as much as digits as its factorization.

2042347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 2042347 is about 1429.1070638689. The cubic root of 2042347 is about 126.8751330210.

Adding to 2042347 its reverse (7432402), we get a palindrome (9474749).

The spelling of 2042347 in words is "two million, forty-two thousand, three hundred forty-seven".