16998948 has 18 divisors (see below), whose sum is σ = 42969654. Its totient is φ = 5666304.

The previous prime is 16998923. The next prime is 16998973. The reversal of 16998948 is 84989961.

It is an interprime number because it is at equal distance from previous prime (16998923) and next prime (16998973).

It can be written as a sum of positive squares in only one way, i.e., 15303744 + 1695204 = 3912^2 + 1302^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 16998894 and 16998903.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 236061 + ... + 236132.

It is an arithmetic number, because the mean of its divisors is an integer number (2387203).

Almost surely, 2^16998948 is an apocalyptic number.

16998948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16998948 is an abundant number, since it is smaller than the sum of its proper divisors (25970706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16998948 is a wasteful number, since it uses less digits than its factorization.

16998948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472203 (or 472198 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 16998948 is about 4122.9780499052. The cubic root of 16998948 is about 257.1228550579.

The spelling of 16998948 in words is "sixteen million, nine hundred ninety-eight thousand, nine hundred forty-eight".