16675738 has 4 divisors (see below), whose sum is σ = 25013610. Its totient is φ = 8337868.

The previous prime is 16675733. The next prime is 16675739. The reversal of 16675738 is 83757661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83757661 = 13 ⋅6442897.

It can be written as a sum of positive squares in only one way, i.e., 15155449 + 1520289 = 3893^2 + 1233^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16675694 and 16675703.

It is not an unprimeable number, because it can be changed into a prime (16675733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4168933 + ... + 4168936.

Almost surely, 2^16675738 is an apocalyptic number.

16675738 is a deficient number, since it is larger than the sum of its proper divisors (8337872).

16675738 is an equidigital number, since it uses as much as digits as its factorization.

16675738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8337871.

The product of its digits is 211680, while the sum is 43.

The square root of 16675738 is about 4083.5937604027. The cubic root of 16675738 is about 255.4828120479.

The spelling of 16675738 in words is "sixteen million, six hundred seventy-five thousand, seven hundred thirty-eight".