16474789 has 4 divisors (see below), whose sum is σ = 16490956. Its totient is φ = 16458624.

The previous prime is 16474763. The next prime is 16474793. The reversal of 16474789 is 98747461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98747461 = 2939 ⋅33599.

It can be written as a sum of positive squares in 2 ways, for example, as 13198689 + 3276100 = 3633^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 16474789 - 2⁹ = 16474277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16474589) 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, 6444 + ... + 8629.

It is an arithmetic number, because the mean of its divisors is an integer number (4122739).

Almost surely, 2^16474789 is an apocalyptic number.

It is an amenable number.

16474789 is a deficient number, since it is larger than the sum of its proper divisors (16167).

16474789 is a wasteful number, since it uses less digits than its factorization.

16474789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16166.

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

The square root of 16474789 is about 4058.9147564343. The cubic root of 16474789 is about 254.4524403469.

It can be divided in two parts, 164747 and 89, that added together give a square (164836 = 406²).

The spelling of 16474789 in words is "sixteen million, four hundred seventy-four thousand, seven hundred eighty-nine".