47699797 has 2 divisors, whose sum is σ = 47699798. Its totient is φ = 47699796.

The previous prime is 47699777. The next prime is 47699819. The reversal of 47699797 is 79799674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35928036 + 11771761 = 5994^2 + 3431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47699797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47699777) 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, 23849898 + 23849899.

It is an arithmetic number, because the mean of its divisors is an integer number (23849899).

Almost surely, 2^47699797 is an apocalyptic number.

It is an amenable number.

47699797 is a deficient number, since it is larger than the sum of its proper divisors (1).

47699797 is an equidigital number, since it uses as much as digits as its factorization.

47699797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6001128, while the sum is 58.

The square root of 47699797 is about 6906.5039636563. The cubic root of 47699797 is about 362.6648876509.

The spelling of 47699797 in words is "forty-seven million, six hundred ninety-nine thousand, seven hundred ninety-seven".