1589680997 has 2 divisors, whose sum is σ = 1589680998. Its totient is φ = 1589680996.

The previous prime is 1589680979. The next prime is 1589681003. The reversal of 1589680997 is 7990869851.

Together with previous prime (1589680979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1332688036 + 256992961 = 36506^2 + 16031^2 .

It is a cyclic number.

It is not a de Polignac number, because 1589680997 - 2⁶ = 1589680933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1589680097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 794840498 + 794840499.

It is an arithmetic number, because the mean of its divisors is an integer number (794840499).

Almost surely, 2^1589680997 is an apocalyptic number.

It is an amenable number.

1589680997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1589680997 is an equidigital number, since it uses as much as digits as its factorization.

1589680997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 62.

The square root of 1589680997 is about 39870.8038168282. The cubic root of 1589680997 is about 1167.0872580518.

The spelling of 1589680997 in words is "one billion, five hundred eighty-nine million, six hundred eighty thousand, nine hundred ninety-seven".