47214709 has 2 divisors, whose sum is σ = 47214710. Its totient is φ = 47214708.

The previous prime is 47214707. The next prime is 47214737. The reversal of 47214709 is 90741274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39652209 + 7562500 = 6297^2 + 2750^2 .

It is a cyclic number.

It is not a de Polignac number, because 47214709 - 2¹ = 47214707 is a prime.

Together with 47214707, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47214703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23607354 + 23607355.

It is an arithmetic number, because the mean of its divisors is an integer number (23607355).

Almost surely, 2^47214709 is an apocalyptic number.

It is an amenable number.

47214709 is a deficient number, since it is larger than the sum of its proper divisors (1).

47214709 is an equidigital number, since it uses as much as digits as its factorization.

47214709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 47214709 is about 6871.2960204026. The cubic root of 47214709 is about 361.4313105092.

The spelling of 47214709 in words is "forty-seven million, two hundred fourteen thousand, seven hundred nine".