998937361 has 2 divisors, whose sum is σ = 998937362. Its totient is φ = 998937360.

The previous prime is 998937349. The next prime is 998937419. The reversal of 998937361 is 163739899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 997296400 + 1640961 = 31580^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 998937361 - 2¹⁵ = 998904593 is a prime.

It is not a weakly prime, because it can be changed into another prime (998937301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499468680 + 499468681.

It is an arithmetic number, because the mean of its divisors is an integer number (499468681).

Almost surely, 2^998937361 is an apocalyptic number.

It is an amenable number.

998937361 is a deficient number, since it is larger than the sum of its proper divisors (1).

998937361 is an equidigital number, since it uses as much as digits as its factorization.

998937361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 55.

The square root of 998937361 is about 31605.9703378966. The cubic root of 998937361 is about 999.6456614590.

The spelling of 998937361 in words is "nine hundred ninety-eight million, nine hundred thirty-seven thousand, three hundred sixty-one".