47311477 has 2 divisors, whose sum is σ = 47311478. Its totient is φ = 47311476.

The previous prime is 47311427. The next prime is 47311507. The reversal of 47311477 is 77411374.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34644996 + 12666481 = 5886^2 + 3559^2 .

It is a cyclic number.

It is not a de Polignac number, because 47311477 - 2¹¹ = 47309429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47311427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23655738 + 23655739.

It is an arithmetic number, because the mean of its divisors is an integer number (23655739).

Almost surely, 2^47311477 is an apocalyptic number.

It is an amenable number.

47311477 is a deficient number, since it is larger than the sum of its proper divisors (1).

47311477 is an equidigital number, since it uses as much as digits as its factorization.

47311477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464, while the sum is 34.

The square root of 47311477 is about 6878.3338825620. Note that the first 3 decimals coincide. The cubic root of 47311477 is about 361.6780635435.

The spelling of 47311477 in words is "forty-seven million, three hundred eleven thousand, four hundred seventy-seven".