998496461 has 4 divisors (see below), whose sum is σ = 1000164000. Its totient is φ = 996828924.

The previous prime is 998496449. The next prime is 998496469. The reversal of 998496461 is 164694899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164694899 = 167 ⋅986197.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998496461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 998496397 and 998496406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998496469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832871 + ... + 834068.

It is an arithmetic number, because the mean of its divisors is an integer number (250041000).

Almost surely, 2^998496461 is an apocalyptic number.

998496461 is the 14132-nd centered decagonal number.

It is an amenable number.

998496461 is a deficient number, since it is larger than the sum of its proper divisors (1667539).

998496461 is a wasteful number, since it uses less digits than its factorization.

998496461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667538.

The product of its digits is 3359232, while the sum is 56.

The square root of 998496461 is about 31598.9946200825. The cubic root of 998496461 is about 999.4985689423.

The spelling of 998496461 in words is "nine hundred ninety-eight million, four hundred ninety-six thousand, four hundred sixty-one".