47864797 has 2 divisors, whose sum is σ = 47864798. Its totient is φ = 47864796.

The previous prime is 47864783. The next prime is 47864801. The reversal of 47864797 is 79746874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47527236 + 337561 = 6894^2 + 581^2 .

It is a cyclic number.

It is not a de Polignac number, because 47864797 - 2⁷ = 47864669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47864737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23932398 + 23932399.

It is an arithmetic number, because the mean of its divisors is an integer number (23932399).

Almost surely, 2^47864797 is an apocalyptic number.

It is an amenable number.

47864797 is a deficient number, since it is larger than the sum of its proper divisors (1).

47864797 is an equidigital number, since it uses as much as digits as its factorization.

47864797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 52.

The square root of 47864797 is about 6918.4389135122. The cubic root of 47864797 is about 363.0825752489.

The spelling of 47864797 in words is "forty-seven million, eight hundred sixty-four thousand, seven hundred ninety-seven".