47277913 has 2 divisors, whose sum is σ = 47277914. Its totient is φ = 47277912.

The previous prime is 47277907. The next prime is 47277929. The reversal of 47277913 is 31977274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41835024 + 5442889 = 6468^2 + 2333^2 .

It is a cyclic number.

It is not a de Polignac number, because 47277913 - 2¹³ = 47269721 is a prime.

It is not a weakly prime, because it can be changed into another prime (47277953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23638956 + 23638957.

It is an arithmetic number, because the mean of its divisors is an integer number (23638957).

Almost surely, 2^47277913 is an apocalyptic number.

It is an amenable number.

47277913 is a deficient number, since it is larger than the sum of its proper divisors (1).

47277913 is an equidigital number, since it uses as much as digits as its factorization.

47277913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 40.

The square root of 47277913 is about 6875.8936146511. The cubic root of 47277913 is about 361.5925153489.

The spelling of 47277913 in words is "forty-seven million, two hundred seventy-seven thousand, nine hundred thirteen".