61307671 has 2 divisors, whose sum is σ = 61307672. Its totient is φ = 61307670.

The previous prime is 61307657. The next prime is 61307731. The reversal of 61307671 is 17670316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61307671 - 2¹⁵ = 61274903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61307611) 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, 30653835 + 30653836.

It is an arithmetic number, because the mean of its divisors is an integer number (30653836).

Almost surely, 2^61307671 is an apocalyptic number.

61307671 is a deficient number, since it is larger than the sum of its proper divisors (1).

61307671 is an equidigital number, since it uses as much as digits as its factorization.

61307671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 61307671 is about 7829.9215194023. The cubic root of 61307671 is about 394.3104371394.

Adding to 61307671 its reverse (17670316), we get a palindrome (78977987).

The spelling of 61307671 in words is "sixty-one million, three hundred seven thousand, six hundred seventy-one".