47819377 has 2 divisors, whose sum is σ = 47819378. Its totient is φ = 47819376.

The previous prime is 47819357. The next prime is 47819383. The reversal of 47819377 is 77391874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45481536 + 2337841 = 6744^2 + 1529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47819377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47819357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23909688 + 23909689.

It is an arithmetic number, because the mean of its divisors is an integer number (23909689).

Almost surely, 2^47819377 is an apocalyptic number.

It is an amenable number.

47819377 is a deficient number, since it is larger than the sum of its proper divisors (1).

47819377 is an equidigital number, since it uses as much as digits as its factorization.

47819377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 46.

The square root of 47819377 is about 6915.1556020093. The cubic root of 47819377 is about 362.9676931180.

The spelling of 47819377 in words is "forty-seven million, eight hundred nineteen thousand, three hundred seventy-seven".