989131411 has 2 divisors, whose sum is σ = 989131412. Its totient is φ = 989131410.

The previous prime is 989131373. The next prime is 989131447. The reversal of 989131411 is 114131989.

It is a strong prime.

It is an emirp because it is prime and its reverse (114131989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 989131411 - 2²³ = 980742803 is a prime.

It is not a weakly prime, because it can be changed into another prime (989137411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494565705 + 494565706.

It is an arithmetic number, because the mean of its divisors is an integer number (494565706).

Almost surely, 2^989131411 is an apocalyptic number.

989131411 is a deficient number, since it is larger than the sum of its proper divisors (1).

989131411 is an equidigital number, since it uses as much as digits as its factorization.

989131411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 37.

The square root of 989131411 is about 31450.4596309815. The cubic root of 989131411 is about 996.3639320339.

The spelling of 989131411 in words is "nine hundred eighty-nine million, one hundred thirty-one thousand, four hundred eleven".