47194087 has 2 divisors, whose sum is σ = 47194088. Its totient is φ = 47194086.

The previous prime is 47194073. The next prime is 47194099. The reversal of 47194087 is 78049174.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47194087 - 2⁷ = 47193959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47194027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23597043 + 23597044.

It is an arithmetic number, because the mean of its divisors is an integer number (23597044).

Almost surely, 2^47194087 is an apocalyptic number.

47194087 is a deficient number, since it is larger than the sum of its proper divisors (1).

47194087 is an equidigital number, since it uses as much as digits as its factorization.

47194087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 47194087 is about 6869.7952662361. The cubic root of 47194087 is about 361.3786819813.

The spelling of 47194087 in words is "forty-seven million, one hundred ninety-four thousand, eighty-seven".