16739425 has 6 divisors (see below), whose sum is σ = 20756918. Its totient is φ = 13391520.

The previous prime is 16739417. The next prime is 16739447. The reversal of 16739425 is 52493761.

It can be written as a sum of positive squares in 3 ways, for example, as 4857616 + 11881809 = 2204^2 + 3447^2 .

It is not a de Polignac number, because 16739425 - 2³ = 16739417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 334764 + ... + 334813.

Almost surely, 2^16739425 is an apocalyptic number.

It is an amenable number.

16739425 is a deficient number, since it is larger than the sum of its proper divisors (4017493).

16739425 is an equidigital number, since it uses as much as digits as its factorization.

16739425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669587 (or 669582 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 16739425 is about 4091.3842400831. The cubic root of 16739425 is about 255.8076405307.

The spelling of 16739425 in words is "sixteen million, seven hundred thirty-nine thousand, four hundred twenty-five".