16427747 has 4 divisors (see below), whose sum is σ = 18774576. Its totient is φ = 14080920.

The previous prime is 16427731. The next prime is 16427759. The reversal of 16427747 is 74772461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74772461 = 2267 ⋅32983.

It is not a de Polignac number, because 16427747 - 2⁴ = 16427731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16427747.

It is not an unprimeable number, because it can be changed into a prime (16423747) 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, 1173404 + ... + 1173417.

It is an arithmetic number, because the mean of its divisors is an integer number (4693644).

Almost surely, 2^16427747 is an apocalyptic number.

16427747 is a deficient number, since it is larger than the sum of its proper divisors (2346829).

16427747 is an equidigital number, since it uses as much as digits as its factorization.

16427747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346828.

The product of its digits is 65856, while the sum is 38.

The square root of 16427747 is about 4053.1157151012. The cubic root of 16427747 is about 254.2100222137.

The spelling of 16427747 in words is "sixteen million, four hundred twenty-seven thousand, seven hundred forty-seven".