998916015 has 32 divisors (see below), whose sum is σ = 1641632256. Its totient is φ = 518394240.

The previous prime is 998915993. The next prime is 998916019. The reversal of 998916015 is 510619899.

It is not a de Polignac number, because 998916015 - 2²⁰ = 997867439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998916019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175870 + ... + 181460.

It is an arithmetic number, because the mean of its divisors is an integer number (51301008).

Almost surely, 2^998916015 is an apocalyptic number.

998916015 is a deficient number, since it is larger than the sum of its proper divisors (642716241).

998916015 is a wasteful number, since it uses less digits than its factorization.

998916015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 998916015 is about 31605.6326467293. The cubic root of 998916015 is about 999.6385410298.

The spelling of 998916015 in words is "nine hundred ninety-eight million, nine hundred sixteen thousand, fifteen".