61799713 has 2 divisors, whose sum is σ = 61799714. Its totient is φ = 61799712.

The previous prime is 61799711. The next prime is 61799719. The reversal of 61799713 is 31799716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41576704 + 20223009 = 6448^2 + 4497^2 .

It is a cyclic number.

It is not a de Polignac number, because 61799713 - 2¹ = 61799711 is a prime.

Together with 61799711, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61799713.

It is not a weakly prime, because it can be changed into another prime (61799711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30899856 + 30899857.

It is an arithmetic number, because the mean of its divisors is an integer number (30899857).

Almost surely, 2^61799713 is an apocalyptic number.

It is an amenable number.

61799713 is a deficient number, since it is larger than the sum of its proper divisors (1).

61799713 is an equidigital number, since it uses as much as digits as its factorization.

61799713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442, while the sum is 43.

The square root of 61799713 is about 7861.2793488083. The cubic root of 61799713 is about 395.3625107658.

The spelling of 61799713 in words is "sixty-one million, seven hundred ninety-nine thousand, seven hundred thirteen".