47685769 has 2 divisors, whose sum is σ = 47685770. Its totient is φ = 47685768.

The previous prime is 47685761. The next prime is 47685793. The reversal of 47685769 is 96758674.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46854025 + 831744 = 6845^2 + 912^2 .

It is a cyclic number.

It is not a de Polignac number, because 47685769 - 2³ = 47685761 is a prime.

It is a super-2 number, since 2×47685769² = 4547865130242722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47685761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23842884 + 23842885.

It is an arithmetic number, because the mean of its divisors is an integer number (23842885).

Almost surely, 2^47685769 is an apocalyptic number.

It is an amenable number.

47685769 is a deficient number, since it is larger than the sum of its proper divisors (1).

47685769 is an equidigital number, since it uses as much as digits as its factorization.

47685769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 52.

The square root of 47685769 is about 6905.4883245141. The cubic root of 47685769 is about 362.6293322107.

The spelling of 47685769 in words is "forty-seven million, six hundred eighty-five thousand, seven hundred sixty-nine".