998262901 has 2 divisors, whose sum is σ = 998262902. Its totient is φ = 998262900.

The previous prime is 998262877. The next prime is 998262913. The reversal of 998262901 is 109262899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 964040401 + 34222500 = 31049^2 + 5850^2 .

It is an emirp because it is prime and its reverse (109262899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998262901 - 2²⁷ = 864045173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998262401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499131450 + 499131451.

It is an arithmetic number, because the mean of its divisors is an integer number (499131451).

Almost surely, 2^998262901 is an apocalyptic number.

It is an amenable number.

998262901 is a deficient number, since it is larger than the sum of its proper divisors (1).

998262901 is an equidigital number, since it uses as much as digits as its factorization.

998262901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 998262901 is about 31595.2987167395. The cubic root of 998262901 is about 999.4206313968.

The spelling of 998262901 in words is "nine hundred ninety-eight million, two hundred sixty-two thousand, nine hundred one".