998496406 has 4 divisors (see below), whose sum is σ = 1497744612. Its totient is φ = 499248202.

The previous prime is 998496349. The next prime is 998496413. The reversal of 998496406 is 604694899.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249624100 + ... + 249624103.

It is an arithmetic number, because the mean of its divisors is an integer number (374436153).

Almost surely, 2^998496406 is an apocalyptic number.

998496406 is a deficient number, since it is larger than the sum of its proper divisors (499248206).

998496406 is a wasteful number, since it uses less digits than its factorization.

998496406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499248205.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The square root of 998496406 is about 31598.9937498016. The cubic root of 998496406 is about 999.4985505905.

It can be divided in two parts, 99849640 and 6, that added together give a triangular number (99849646 = T₁₄₁₃₁).

The spelling of 998496406 in words is "nine hundred ninety-eight million, four hundred ninety-six thousand, four hundred six".