16948943 has 4 divisors (see below), whose sum is σ = 18489768. Its totient is φ = 15408120.

The previous prime is 16948937. The next prime is 16948979. The reversal of 16948943 is 34984961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34984961 = 11 ⋅3180451.

It is a cyclic number.

It is not a de Polignac number, because 16948943 - 2⁴ = 16948927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16948894 and 16948903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16948913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770396 + ... + 770417.

It is an arithmetic number, because the mean of its divisors is an integer number (4622442).

Almost surely, 2^16948943 is an apocalyptic number.

16948943 is a deficient number, since it is larger than the sum of its proper divisors (1540825).

16948943 is a wasteful number, since it uses less digits than its factorization.

16948943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540824.

The product of its digits is 186624, while the sum is 44.

The square root of 16948943 is about 4116.9093990517. The cubic root of 16948943 is about 256.8704853941.

The spelling of 16948943 in words is "sixteen million, nine hundred forty-eight thousand, nine hundred forty-three".