1682172589 has 2 divisors, whose sum is σ = 1682172590. Its totient is φ = 1682172588.

The previous prime is 1682172571. The next prime is 1682172607. The reversal of 1682172589 is 9852712861.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1682172571) and next prime (1682172607).

It can be written as a sum of positive squares in only one way, i.e., 1680590025 + 1582564 = 40995^2 + 1258^2 .

It is a cyclic number.

It is not a de Polignac number, because 1682172589 - 2⁷ = 1682172461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1682172509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841086294 + 841086295.

It is an arithmetic number, because the mean of its divisors is an integer number (841086295).

Almost surely, 2^1682172589 is an apocalyptic number.

It is an amenable number.

1682172589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1682172589 is an equidigital number, since it uses as much as digits as its factorization.

1682172589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 49.

The square root of 1682172589 is about 41014.2973729893. The cubic root of 1682172589 is about 1189.2966182014.

The spelling of 1682172589 in words is "one billion, six hundred eighty-two million, one hundred seventy-two thousand, five hundred eighty-nine".