61338847 has 2 divisors, whose sum is σ = 61338848. Its totient is φ = 61338846.

The previous prime is 61338833. The next prime is 61338899. The reversal of 61338847 is 74883316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61338847 - 2¹⁵ = 61306079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61368847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30669423 + 30669424.

It is an arithmetic number, because the mean of its divisors is an integer number (30669424).

Almost surely, 2^61338847 is an apocalyptic number.

61338847 is a deficient number, since it is larger than the sum of its proper divisors (1).

61338847 is an equidigital number, since it uses as much as digits as its factorization.

61338847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 61338847 is about 7831.9120909265. The cubic root of 61338847 is about 394.3772636818.

The spelling of 61338847 in words is "sixty-one million, three hundred thirty-eight thousand, eight hundred forty-seven".