1712255647 has 2 divisors, whose sum is σ = 1712255648. Its totient is φ = 1712255646.

The previous prime is 1712255621. The next prime is 1712255687. The reversal of 1712255647 is 7465522171.

It is an a-pointer prime, because the next prime (1712255687) can be obtained adding 1712255647 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1712255647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1712255687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 856127823 + 856127824.

It is an arithmetic number, because the mean of its divisors is an integer number (856127824).

Almost surely, 2^1712255647 is an apocalyptic number.

1712255647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1712255647 is an equidigital number, since it uses as much as digits as its factorization.

1712255647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 40.

The square root of 1712255647 is about 41379.4109068749. The cubic root of 1712255647 is about 1196.3443486623.

The spelling of 1712255647 in words is "one billion, seven hundred twelve million, two hundred fifty-five thousand, six hundred forty-seven".