16748047 has 4 divisors (see below), whose sum is σ = 16860600. Its totient is φ = 16635496.

The previous prime is 16748041. The next prime is 16748059. The reversal of 16748047 is 74084761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74084761 = 31 ⋅2389831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16748047 is a prime.

It is a super-3 number, since 3×16748047³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 16747997 and 16748015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16748041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56053 + ... + 56350.

It is an arithmetic number, because the mean of its divisors is an integer number (4215150).

Almost surely, 2^16748047 is an apocalyptic number.

16748047 is the 2188-th centered heptagonal number.

16748047 is a deficient number, since it is larger than the sum of its proper divisors (112553).

16748047 is a wasteful number, since it uses less digits than its factorization.

16748047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112552.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 16748047 is about 4092.4377820561. The cubic root of 16748047 is about 255.8515527301.

The spelling of 16748047 in words is "sixteen million, seven hundred forty-eight thousand, forty-seven".