998377 has 2 divisors, whose sum is σ = 998378. Its totient is φ = 998376.

The previous prime is 998353. The next prime is 998381. The reversal of 998377 is 773899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 112896 = 941^2 + 336^2 .

It is a cyclic number.

It is not a de Polignac number, because 998377 - 2¹¹ = 996329 is a prime.

998377 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (998077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499188 + 499189.

It is an arithmetic number, because the mean of its divisors is an integer number (499189).

2⁹⁹⁸³⁷⁷ is an apocalyptic number.

It is an amenable number.

998377 is a deficient number, since it is larger than the sum of its proper divisors (1).

998377 is an equidigital number, since it uses as much as digits as its factorization.

998377 is an evil number, because the sum of its binary digits is even.

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

The square root of 998377 is about 999.1881704664. The cubic root of 998377 is about 99.9458707055.

The spelling of 998377 in words is "nine hundred ninety-eight thousand, three hundred seventy-seven".