989696069 has 2 divisors, whose sum is σ = 989696070. Its totient is φ = 989696068.

The previous prime is 989696047. The next prime is 989696101. The reversal of 989696069 is 960696989.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 896283844 + 93412225 = 29938^2 + 9665^2 .

It is a cyclic number.

It is not a de Polignac number, because 989696069 - 2¹⁶ = 989630533 is a prime.

It is a super-2 number, since 2×989696069² = 1958996617988105522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989696009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494848034 + 494848035.

It is an arithmetic number, because the mean of its divisors is an integer number (494848035).

Almost surely, 2^989696069 is an apocalyptic number.

It is an amenable number.

989696069 is a deficient number, since it is larger than the sum of its proper divisors (1).

989696069 is an equidigital number, since it uses as much as digits as its factorization.

989696069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11337408, while the sum is 62.

The square root of 989696069 is about 31459.4352937239. The cubic root of 989696069 is about 996.5534915593.

The spelling of 989696069 in words is "nine hundred eighty-nine million, six hundred ninety-six thousand, sixty-nine".