7442947 has 2 divisors, whose sum is σ = 7442948. Its totient is φ = 7442946.

The previous prime is 7442933. The next prime is 7442951. The reversal of 7442947 is 7492447.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7442947 is a prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (7442917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3721473 + 3721474.

It is an arithmetic number, because the mean of its divisors is an integer number (3721474).

Almost surely, 2^7442947 is an apocalyptic number.

7442947 is a deficient number, since it is larger than the sum of its proper divisors (1).

7442947 is an equidigital number, since it uses as much as digits as its factorization.

7442947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

The square root of 7442947 is about 2728.1764972230. The cubic root of 7442947 is about 195.2457738187.

The spelling of 7442947 in words is "seven million, four hundred forty-two thousand, nine hundred forty-seven".