989377 has 2 divisors, whose sum is σ = 989378. Its totient is φ = 989376.

The previous prime is 989353. The next prime is 989381. The reversal of 989377 is 773989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 919681 + 69696 = 959^2 + 264^2 .

It is an emirp because it is prime and its reverse (773989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 989377 - 2⁷ = 989249 is a prime.

It is not a weakly prime, because it can be changed into another prime (989327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494688 + 494689.

It is an arithmetic number, because the mean of its divisors is an integer number (494689).

2⁹⁸⁹³⁷⁷ is an apocalyptic number.

It is an amenable number.

989377 is a deficient number, since it is larger than the sum of its proper divisors (1).

989377 is an equidigital number, since it uses as much as digits as its factorization.

989377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 43.

The square root of 989377 is about 994.6743185586. The cubic root of 989377 is about 99.6446386792.

The spelling of 989377 in words is "nine hundred eighty-nine thousand, three hundred seventy-seven".