47474549 has 2 divisors, whose sum is σ = 47474550. Its totient is φ = 47474548.

The previous prime is 47474513. The next prime is 47474561. The reversal of 47474549 is 94547474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46922500 + 552049 = 6850^2 + 743^2 .

It is a cyclic number.

It is not a de Polignac number, because 47474549 - 2²⁴ = 30697333 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47474569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23737274 + 23737275.

It is an arithmetic number, because the mean of its divisors is an integer number (23737275).

Almost surely, 2^47474549 is an apocalyptic number.

It is an amenable number.

47474549 is a deficient number, since it is larger than the sum of its proper divisors (1).

47474549 is an equidigital number, since it uses as much as digits as its factorization.

47474549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 44.

The square root of 47474549 is about 6890.1777190432. The cubic root of 47474549 is about 362.0931279583.

The spelling of 47474549 in words is "forty-seven million, four hundred seventy-four thousand, five hundred forty-nine".