16312447 has 4 divisors (see below), whose sum is σ = 16384536. Its totient is φ = 16240360.

The previous prime is 16312441. The next prime is 16312459. The reversal of 16312447 is 74421361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16312447 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16312441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35704 + ... + 36157.

It is an arithmetic number, because the mean of its divisors is an integer number (4096134).

Almost surely, 2^16312447 is an apocalyptic number.

16312447 is a deficient number, since it is larger than the sum of its proper divisors (72089).

16312447 is an equidigital number, since it uses as much as digits as its factorization.

16312447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72088.

The product of its digits is 4032, while the sum is 28.

The square root of 16312447 is about 4038.8670441103. The cubic root of 16312447 is about 253.6138914312.

The spelling of 16312447 in words is "sixteen million, three hundred twelve thousand, four hundred forty-seven".