1716640231 has 2 divisors, whose sum is σ = 1716640232. Its totient is φ = 1716640230.

The previous prime is 1716640207. The next prime is 1716640301. The reversal of 1716640231 is 1320466171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1716640231 - 2⁵ = 1716640199 is a prime.

It is a super-2 number, since 2×1716640231² = 5893707365375466722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1716640193 and 1716640202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1716641231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 858320115 + 858320116.

It is an arithmetic number, because the mean of its divisors is an integer number (858320116).

Almost surely, 2^1716640231 is an apocalyptic number.

1716640231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1716640231 is an equidigital number, since it uses as much as digits as its factorization.

1716640231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1716640231 is about 41432.3572947521. The cubic root of 1716640231 is about 1197.3646404795.

The spelling of 1716640231 in words is "one billion, seven hundred sixteen million, six hundred forty thousand, two hundred thirty-one".