47969777 has 2 divisors, whose sum is σ = 47969778. Its totient is φ = 47969776.

The previous prime is 47969771. The next prime is 47969783. The reversal of 47969777 is 77796974.

It is a balanced prime because it is at equal distance from previous prime (47969771) and next prime (47969783).

It can be written as a sum of positive squares in only one way, i.e., 31315216 + 16654561 = 5596^2 + 4081^2 .

It is a cyclic number.

It is not a de Polignac number, because 47969777 - 2¹⁸ = 47707633 is a prime.

It is not a weakly prime, because it can be changed into another prime (47969771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23984888 + 23984889.

It is an arithmetic number, because the mean of its divisors is an integer number (23984889).

Almost surely, 2^47969777 is an apocalyptic number.

It is an amenable number.

47969777 is a deficient number, since it is larger than the sum of its proper divisors (1).

47969777 is an equidigital number, since it uses as much as digits as its factorization.

47969777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4667544, while the sum is 56.

The square root of 47969777 is about 6926.0217296800. The cubic root of 47969777 is about 363.3478263912.

The spelling of 47969777 in words is "forty-seven million, nine hundred sixty-nine thousand, seven hundred seventy-seven".