998262905 has 16 divisors (see below), whose sum is σ = 1261077120. Its totient is φ = 757118208.

The previous prime is 998262901. The next prime is 998262913. The reversal of 998262905 is 509262899.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 998262905 - 2² = 998262901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998262901) 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 in 15 ways as a sum of consecutive naturals, for example, 25415 + ... + 51404.

It is an arithmetic number, because the mean of its divisors is an integer number (78817320).

Almost surely, 2^998262905 is an apocalyptic number.

It is an amenable number.

998262905 is a deficient number, since it is larger than the sum of its proper divisors (262814215).

998262905 is a wasteful number, since it uses less digits than its factorization.

998262905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76960.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 998262905 is about 31595.2987800400. The cubic root of 998262905 is about 999.4206327317.

The spelling of 998262905 in words is "nine hundred ninety-eight million, two hundred sixty-two thousand, nine hundred five".