980689069 has 2 divisors, whose sum is σ = 980689070. Its totient is φ = 980689068.

The previous prime is 980689067. The next prime is 980689121. The reversal of 980689069 is 960986089.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 949440969 + 31248100 = 30813^2 + 5590^2 .

It is a cyclic number.

It is not a de Polignac number, because 980689069 - 2¹ = 980689067 is a prime.

It is a super-2 number, since 2×980689069² = 1923502100112173522, which contains 22 as substring.

Together with 980689067, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (980689067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490344534 + 490344535.

It is an arithmetic number, because the mean of its divisors is an integer number (490344535).

Almost surely, 2^980689069 is an apocalyptic number.

It is an amenable number.

980689069 is a deficient number, since it is larger than the sum of its proper divisors (1).

980689069 is an equidigital number, since it uses as much as digits as its factorization.

980689069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 55.

The square root of 980689069 is about 31315.9555019482. The cubic root of 980689069 is about 993.5211379987.

The spelling of 980689069 in words is "nine hundred eighty million, six hundred eighty-nine thousand, sixty-nine".