998279547 has 4 divisors (see below), whose sum is σ = 1331039400. Its totient is φ = 665519696.

The previous prime is 998279519. The next prime is 998279561. The reversal of 998279547 is 745972899.

998279547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 998279547 - 2¹² = 998275451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998279507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166379922 + ... + 166379927.

It is an arithmetic number, because the mean of its divisors is an integer number (332759850).

Almost surely, 2^998279547 is an apocalyptic number.

998279547 is a deficient number, since it is larger than the sum of its proper divisors (332759853).

998279547 is a wasteful number, since it uses less digits than its factorization.

998279547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332759852.

The product of its digits is 11430720, while the sum is 60.

The square root of 998279547 is about 31595.5621409083. The cubic root of 998279547 is about 999.4261864677.

The spelling of 998279547 in words is "nine hundred ninety-eight million, two hundred seventy-nine thousand, five hundred forty-seven".