47722613 has 2 divisors, whose sum is σ = 47722614. Its totient is φ = 47722612.

The previous prime is 47722607. The next prime is 47722643. The reversal of 47722613 is 31622774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 3659569 = 6638^2 + 1913^2 .

It is a cyclic number.

It is not a de Polignac number, because 47722613 - 2¹⁰ = 47721589 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47722613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47722643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23861306 + 23861307.

It is an arithmetic number, because the mean of its divisors is an integer number (23861307).

Almost surely, 2^47722613 is an apocalyptic number.

It is an amenable number.

47722613 is a deficient number, since it is larger than the sum of its proper divisors (1).

47722613 is an equidigital number, since it uses as much as digits as its factorization.

47722613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 32.

The square root of 47722613 is about 6908.1555425453. The cubic root of 47722613 is about 362.7227023143.

The spelling of 47722613 in words is "forty-seven million, seven hundred twenty-two thousand, six hundred thirteen".