47164493 has 2 divisors, whose sum is σ = 47164494. Its totient is φ = 47164492.

The previous prime is 47164483. The next prime is 47164543. The reversal of 47164493 is 39446174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44863204 + 2301289 = 6698^2 + 1517^2 .

It is a cyclic number.

It is not a de Polignac number, because 47164493 - 2¹⁴ = 47148109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47164433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23582246 + 23582247.

It is an arithmetic number, because the mean of its divisors is an integer number (23582247).

Almost surely, 2^47164493 is an apocalyptic number.

It is an amenable number.

47164493 is a deficient number, since it is larger than the sum of its proper divisors (1).

47164493 is an equidigital number, since it uses as much as digits as its factorization.

47164493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 47164493 is about 6867.6410069252. The cubic root of 47164493 is about 361.3031296003.

The spelling of 47164493 in words is "forty-seven million, one hundred sixty-four thousand, four hundred ninety-three".