47378717 has 2 divisors, whose sum is σ = 47378718. Its totient is φ = 47378716.

The previous prime is 47378713. The next prime is 47378729. The reversal of 47378717 is 71787374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37100281 + 10278436 = 6091^2 + 3206^2 .

It is a cyclic number.

It is not a de Polignac number, because 47378717 - 2² = 47378713 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47378713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23689358 + 23689359.

It is an arithmetic number, because the mean of its divisors is an integer number (23689359).

Almost surely, 2^47378717 is an apocalyptic number.

It is an amenable number.

47378717 is a deficient number, since it is larger than the sum of its proper divisors (1).

47378717 is an equidigital number, since it uses as much as digits as its factorization.

47378717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230496, while the sum is 44.

The square root of 47378717 is about 6883.2199587112. The cubic root of 47378717 is about 361.8493237579.

The spelling of 47378717 in words is "forty-seven million, three hundred seventy-eight thousand, seven hundred seventeen".