47243797 has 2 divisors, whose sum is σ = 47243798. Its totient is φ = 47243796.

The previous prime is 47243743. The next prime is 47243803. The reversal of 47243797 is 79734274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28633201 + 18610596 = 5351^2 + 4314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47243797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47273797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23621898 + 23621899.

It is an arithmetic number, because the mean of its divisors is an integer number (23621899).

Almost surely, 2^47243797 is an apocalyptic number.

It is an amenable number.

47243797 is a deficient number, since it is larger than the sum of its proper divisors (1).

47243797 is an equidigital number, since it uses as much as digits as its factorization.

47243797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 43.

The square root of 47243797 is about 6873.4123257666. The cubic root of 47243797 is about 361.5055187091.

The spelling of 47243797 in words is "forty-seven million, two hundred forty-three thousand, seven hundred ninety-seven".