61602439 has 2 divisors, whose sum is σ = 61602440. Its totient is φ = 61602438.

The previous prime is 61602433. The next prime is 61602449. The reversal of 61602439 is 93420616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61602439 - 2⁷ = 61602311 is a prime.

61602439 is a modest number, since divided by 2439 gives 616 as remainder.

It is equal to p_3651439 and since 61602439 and 3651439 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61602439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61602433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30801219 + 30801220.

It is an arithmetic number, because the mean of its divisors is an integer number (30801220).

Almost surely, 2^61602439 is an apocalyptic number.

61602439 is a deficient number, since it is larger than the sum of its proper divisors (1).

61602439 is an equidigital number, since it uses as much as digits as its factorization.

61602439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 61602439 is about 7848.7221252889. The cubic root of 61602439 is about 394.9413767617.

The spelling of 61602439 in words is "sixty-one million, six hundred two thousand, four hundred thirty-nine".