47442613 has 2 divisors, whose sum is σ = 47442614. Its totient is φ = 47442612.

The previous prime is 47442589. The next prime is 47442649. The reversal of 47442613 is 31624474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31618129 + 15824484 = 5623^2 + 3978^2 .

It is a cyclic number.

It is not a de Polignac number, because 47442613 - 2¹⁷ = 47311541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47442673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23721306 + 23721307.

It is an arithmetic number, because the mean of its divisors is an integer number (23721307).

Almost surely, 2^47442613 is an apocalyptic number.

It is an amenable number.

47442613 is a deficient number, since it is larger than the sum of its proper divisors (1).

47442613 is an equidigital number, since it uses as much as digits as its factorization.

47442613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 47442613 is about 6887.8598272613. The cubic root of 47442613 is about 362.0119167246.

The spelling of 47442613 in words is "forty-seven million, four hundred forty-two thousand, six hundred thirteen".