61647367 has 2 divisors, whose sum is σ = 61647368. Its totient is φ = 61647366.

The previous prime is 61647349. The next prime is 61647401. The reversal of 61647367 is 76374616.

61647367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61647367 - 2¹⁵ = 61614599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61641367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30823683 + 30823684.

It is an arithmetic number, because the mean of its divisors is an integer number (30823684).

Almost surely, 2^61647367 is an apocalyptic number.

61647367 is a deficient number, since it is larger than the sum of its proper divisors (1).

61647367 is an equidigital number, since it uses as much as digits as its factorization.

61647367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 61647367 is about 7851.5837255932. The cubic root of 61647367 is about 395.0373665446.

It can be divided in two parts, 6164 and 7367, that added together give a palindrome (13531).

The spelling of 61647367 in words is "sixty-one million, six hundred forty-seven thousand, three hundred sixty-seven".