16948747 has 4 divisors (see below), whose sum is σ = 16994560. Its totient is φ = 16902936.

The previous prime is 16948733. The next prime is 16948781. The reversal of 16948747 is 74784961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74784961 = 53 ⋅1411037.

It is a cyclic number.

It is not a de Polignac number, because 16948747 - 2⁷ = 16948619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16948697 and 16948706.

It is not an unprimeable number, because it can be changed into a prime (16948727) 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, 22347 + ... + 23092.

It is an arithmetic number, because the mean of its divisors is an integer number (4248640).

Almost surely, 2^16948747 is an apocalyptic number.

16948747 is a deficient number, since it is larger than the sum of its proper divisors (45813).

16948747 is an equidigital number, since it uses as much as digits as its factorization.

16948747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45812.

The product of its digits is 338688, while the sum is 46.

The square root of 16948747 is about 4116.8855947184. The cubic root of 16948747 is about 256.8694952280.

The spelling of 16948747 in words is "sixteen million, nine hundred forty-eight thousand, seven hundred forty-seven".