100769989 has 2 divisors, whose sum is σ = 100769990. Its totient is φ = 100769988.

The previous prime is 100769959. The next prime is 100770011. The reversal of 100769989 is 989967001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100661089 + 108900 = 10033^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 100769989 - 2⁷ = 100769861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100769959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50384994 + 50384995.

It is an arithmetic number, because the mean of its divisors is an integer number (50384995).

Almost surely, 2^100769989 is an apocalyptic number.

It is an amenable number.

100769989 is a deficient number, since it is larger than the sum of its proper divisors (1).

100769989 is an equidigital number, since it uses as much as digits as its factorization.

100769989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 100769989 is about 10038.4256235727. The cubic root of 100769989 is about 465.3471628010.

The spelling of 100769989 in words is "one hundred million, seven hundred sixty-nine thousand, nine hundred eighty-nine".