16948881 has 12 divisors (see below), whose sum is σ = 25922052. Its totient is φ = 10634496.

The previous prime is 16948879. The next prime is 16948891. The reversal of 16948881 is 18884961.

16948881 is a `hidden beast` number, since 169 + 488 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6969600 + 9979281 = 2640^2 + 3159^2 .

It is not a de Polignac number, because 16948881 - 2¹ = 16948879 is a prime.

It is a super-2 number, since 2×16948881² = 574529134304322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16948891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55236 + ... + 55541.

It is an arithmetic number, because the mean of its divisors is an integer number (2160171).

Almost surely, 2^16948881 is an apocalyptic number.

It is an amenable number.

16948881 is a deficient number, since it is larger than the sum of its proper divisors (8973171).

16948881 is a wasteful number, since it uses less digits than its factorization.

16948881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110800 (or 110797 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 16948881 is about 4116.9018691244. The cubic root of 16948881 is about 256.8701721791.

The spelling of 16948881 in words is "sixteen million, nine hundred forty-eight thousand, eight hundred eighty-one".