989361199 has 2 divisors, whose sum is σ = 989361200. Its totient is φ = 989361198.

The previous prime is 989361193. The next prime is 989361221. The reversal of 989361199 is 991163989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 989361199 - 2²³ = 980972591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989361193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494680599 + 494680600.

It is an arithmetic number, because the mean of its divisors is an integer number (494680600).

Almost surely, 2^989361199 is an apocalyptic number.

989361199 is a deficient number, since it is larger than the sum of its proper divisors (1).

989361199 is an equidigital number, since it uses as much as digits as its factorization.

989361199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 944784, while the sum is 55.

The square root of 989361199 is about 31454.1125927914. The cubic root of 989361199 is about 996.4410821292.

The spelling of 989361199 in words is "nine hundred eighty-nine million, three hundred sixty-one thousand, one hundred ninety-nine".