47872613 has 2 divisors, whose sum is σ = 47872614. Its totient is φ = 47872612.

The previous prime is 47872603. The next prime is 47872619. The reversal of 47872613 is 31627874.

47872613 is nontrivially palindromic in base 13.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31888609 + 15984004 = 5647^2 + 3998^2 .

It is a cyclic number.

It is not a de Polignac number, because 47872613 - 2¹⁰ = 47871589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47872619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23936306 + 23936307.

It is an arithmetic number, because the mean of its divisors is an integer number (23936307).

Almost surely, 2^47872613 is an apocalyptic number.

It is an amenable number.

47872613 is a deficient number, since it is larger than the sum of its proper divisors (1).

47872613 is an equidigital number, since it uses as much as digits as its factorization.

47872613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 47872613 is about 6919.0037577674. The cubic root of 47872613 is about 363.1023371555.

The spelling of 47872613 in words is "forty-seven million, eight hundred seventy-two thousand, six hundred thirteen".