47500709 has 2 divisors, whose sum is σ = 47500710. Its totient is φ = 47500708.

The previous prime is 47500679. The next prime is 47500721. The reversal of 47500709 is 90700574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38167684 + 9333025 = 6178^2 + 3055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47500709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47500729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23750354 + 23750355.

It is an arithmetic number, because the mean of its divisors is an integer number (23750355).

Almost surely, 2^47500709 is an apocalyptic number.

It is an amenable number.

47500709 is a deficient number, since it is larger than the sum of its proper divisors (1).

47500709 is an equidigital number, since it uses as much as digits as its factorization.

47500709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 47500709 is about 6892.0758121193. The cubic root of 47500709 is about 362.1596240571.

The spelling of 47500709 in words is "forty-seven million, five hundred thousand, seven hundred nine".