16971948 has 36 divisors (see below), whose sum is σ = 49030800. Its totient is φ = 4849056.

The previous prime is 16971919. The next prime is 16971949. The reversal of 16971948 is 84917961.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (16971949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33423 + ... + 33926.

Almost surely, 2^16971948 is an apocalyptic number.

16971948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16971948 is an abundant number, since it is smaller than the sum of its proper divisors (32058852).

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

16971948 is a wasteful number, since it uses less digits than its factorization.

16971948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67366 (or 67361 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 16971948 is about 4119.7024164374. The cubic root of 16971948 is about 256.9866506311.

The spelling of 16971948 in words is "sixteen million, nine hundred seventy-one thousand, nine hundred forty-eight".