47190709 has 2 divisors, whose sum is σ = 47190710. Its totient is φ = 47190708.

The previous prime is 47190707. The next prime is 47190727. The reversal of 47190709 is 90709174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44849809 + 2340900 = 6697^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 47190709 - 2¹ = 47190707 is a prime.

Together with 47190707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47190701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23595354 + 23595355.

It is an arithmetic number, because the mean of its divisors is an integer number (23595355).

Almost surely, 2^47190709 is an apocalyptic number.

It is an amenable number.

47190709 is a deficient number, since it is larger than the sum of its proper divisors (1).

47190709 is an equidigital number, since it uses as much as digits as its factorization.

47190709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 47190709 is about 6869.5494029812. The cubic root of 47190709 is about 361.3700596701.

The spelling of 47190709 in words is "forty-seven million, one hundred ninety thousand, seven hundred nine".