61910671 has 2 divisors, whose sum is σ = 61910672. Its totient is φ = 61910670.

The previous prime is 61910659. The next prime is 61910729. The reversal of 61910671 is 17601916.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61910671 - 2⁹ = 61910159 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61910371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30955335 + 30955336.

It is an arithmetic number, because the mean of its divisors is an integer number (30955336).

Almost surely, 2^61910671 is an apocalyptic number.

61910671 is a deficient number, since it is larger than the sum of its proper divisors (1).

61910671 is an equidigital number, since it uses as much as digits as its factorization.

61910671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 61910671 is about 7868.3334321824. Note that the first 3 decimals coincide. The cubic root of 61910671 is about 395.5989865407.

The spelling of 61910671 in words is "sixty-one million, nine hundred ten thousand, six hundred seventy-one".