998008455 has 16 divisors (see below), whose sum is σ = 1606047840. Its totient is φ = 529193088.

The previous prime is 998008439. The next prime is 998008471. The reversal of 998008455 is 554800899.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (998008439) and next prime (998008471).

It is not a de Polignac number, because 998008455 - 2⁴ = 998008439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189700 + ... + 194889.

It is an arithmetic number, because the mean of its divisors is an integer number (100377990).

Almost surely, 2^998008455 is an apocalyptic number.

998008455 is a deficient number, since it is larger than the sum of its proper divisors (608039385).

998008455 is a wasteful number, since it uses less digits than its factorization.

998008455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384770.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 998008455 is about 31591.2718167534. The cubic root of 998008455 is about 999.3357104838.

The spelling of 998008455 in words is "nine hundred ninety-eight million, eight thousand, four hundred fifty-five".