939101489 has 2 divisors, whose sum is σ = 939101490. Its totient is φ = 939101488.

The previous prime is 939101459. The next prime is 939101491. The reversal of 939101489 is 984101939.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 887146225 + 51955264 = 29785^2 + 7208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-939101489 is a prime.

It is a Sophie Germain prime.

Together with 939101491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (939101459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469550744 + 469550745.

It is an arithmetic number, because the mean of its divisors is an integer number (469550745).

Almost surely, 2^939101489 is an apocalyptic number.

It is an amenable number.

939101489 is a deficient number, since it is larger than the sum of its proper divisors (1).

939101489 is an equidigital number, since it uses as much as digits as its factorization.

939101489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 939101489 is about 30644.7628315182. The cubic root of 939101489 is about 979.2738925867.

The spelling of 939101489 in words is "nine hundred thirty-nine million, one hundred one thousand, four hundred eighty-nine".