61924613 has 2 divisors, whose sum is σ = 61924614. Its totient is φ = 61924612.

The previous prime is 61924561. The next prime is 61924619. The reversal of 61924613 is 31642916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61811044 + 113569 = 7862^2 + 337^2 .

It is a cyclic number.

It is not a de Polignac number, because 61924613 - 2²⁰ = 60876037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61924613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61924619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30962306 + 30962307.

It is an arithmetic number, because the mean of its divisors is an integer number (30962307).

Almost surely, 2^61924613 is an apocalyptic number.

It is an amenable number.

61924613 is a deficient number, since it is larger than the sum of its proper divisors (1).

61924613 is an equidigital number, since it uses as much as digits as its factorization.

61924613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 61924613 is about 7869.2193386638. The cubic root of 61924613 is about 395.6286800061.

The spelling of 61924613 in words is "sixty-one million, nine hundred twenty-four thousand, six hundred thirteen".