61605347 has 2 divisors, whose sum is σ = 61605348. Its totient is φ = 61605346.

The previous prime is 61605337. The next prime is 61605371. The reversal of 61605347 is 74350616.

61605347 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 a de Polignac number, because none of the positive numbers 2^k-61605347 is a prime.

It is a Chen prime.

It is equal to p_3651593 and since 61605347 and 3651593 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (61605307) 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, 30802673 + 30802674.

It is an arithmetic number, because the mean of its divisors is an integer number (30802674).

Almost surely, 2^61605347 is an apocalyptic number.

61605347 is a deficient number, since it is larger than the sum of its proper divisors (1).

61605347 is an equidigital number, since it uses as much as digits as its factorization.

61605347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 61605347 is about 7848.9073761894. The cubic root of 61605347 is about 394.9475911880.

The spelling of 61605347 in words is "sixty-one million, six hundred five thousand, three hundred forty-seven".