16709425 has 12 divisors (see below), whose sum is σ = 21061276. Its totient is φ = 13147200.

The previous prime is 16709401. The next prime is 16709437. The reversal of 16709425 is 52490761.

It can be written as a sum of positive squares in 6 ways, for example, as 2322576 + 14386849 = 1524^2 + 3793^2 .

It is not a de Polignac number, because 16709425 - 2¹³ = 16701233 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3954 + ... + 7003.

Almost surely, 2^16709425 is an apocalyptic number.

It is an amenable number.

16709425 is a deficient number, since it is larger than the sum of its proper divisors (4351851).

16709425 is a wasteful number, since it uses less digits than its factorization.

16709425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11028 (or 11023 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 16709425 is about 4087.7163551303. The cubic root of 16709425 is about 255.6547316880.

The spelling of 16709425 in words is "sixteen million, seven hundred nine thousand, four hundred twenty-five".