47564471 has 2 divisors, whose sum is σ = 47564472. Its totient is φ = 47564470.

The previous prime is 47564449. The next prime is 47564519. The reversal of 47564471 is 17446574.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47564471 - 2¹⁸ = 47302327 is a prime.

It is a super-3 number, since 3×47564471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47564411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23782235 + 23782236.

It is an arithmetic number, because the mean of its divisors is an integer number (23782236).

Almost surely, 2^47564471 is an apocalyptic number.

47564471 is a deficient number, since it is larger than the sum of its proper divisors (1).

47564471 is an equidigital number, since it uses as much as digits as its factorization.

47564471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 38.

The square root of 47564471 is about 6896.7000079748. The cubic root of 47564471 is about 362.3215984620.

It can be divided in two parts, 475 and 64471, that added together give a palindrome (64946).

The spelling of 47564471 in words is "forty-seven million, five hundred sixty-four thousand, four hundred seventy-one".