47118691 has 2 divisors, whose sum is σ = 47118692. Its totient is φ = 47118690.

The previous prime is 47118671. The next prime is 47118737. The reversal of 47118691 is 19681174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47118691 - 2⁹ = 47118179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47118691.

It is not a weakly prime, because it can be changed into another prime (47118671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23559345 + 23559346.

It is an arithmetic number, because the mean of its divisors is an integer number (23559346).

Almost surely, 2^47118691 is an apocalyptic number.

47118691 is a deficient number, since it is larger than the sum of its proper divisors (1).

47118691 is an equidigital number, since it uses as much as digits as its factorization.

47118691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 37.

The square root of 47118691 is about 6864.3055730350. The cubic root of 47118691 is about 361.1861364658.

The spelling of 47118691 in words is "forty-seven million, one hundred eighteen thousand, six hundred ninety-one".