16385397 has 8 divisors (see below), whose sum is σ = 24968256. Its totient is φ = 9363072.

The previous prime is 16385389. The next prime is 16385401. The reversal of 16385397 is 79358361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16385397 - 2³ = 16385389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16385197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390108 + ... + 390149.

It is an arithmetic number, because the mean of its divisors is an integer number (3121032).

Almost surely, 2^16385397 is an apocalyptic number.

It is an amenable number.

16385397 is a deficient number, since it is larger than the sum of its proper divisors (8582859).

16385397 is an equidigital number, since it uses as much as digits as its factorization.

16385397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780267.

The product of its digits is 136080, while the sum is 42.

The square root of 16385397 is about 4047.8879678173. The cubic root of 16385397 is about 253.9913868574.

The spelling of 16385397 in words is "sixteen million, three hundred eighty-five thousand, three hundred ninety-seven".