16385247 has 12 divisors (see below), whose sum is σ = 24544520. Its totient is φ = 10923336.

The previous prime is 16385233. The next prime is 16385251. The reversal of 16385247 is 74258361.

It is not a de Polignac number, because 16385247 - 2¹⁰ = 16384223 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 (16385287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33472 + ... + 33957.

Almost surely, 2^16385247 is an apocalyptic number.

16385247 is a deficient number, since it is larger than the sum of its proper divisors (8159273).

16385247 is an frugal number, since it uses more digits than its factorization.

16385247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67444 (or 67432 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 16385247 is about 4047.8694395941. The cubic root of 16385247 is about 253.9906118009.

The spelling of 16385247 in words is "sixteen million, three hundred eighty-five thousand, two hundred forty-seven".