16312387 has 12 divisors (see below), whose sum is σ = 20188560. Its totient is φ = 12905568.

The previous prime is 16312381. The next prime is 16312391. The reversal of 16312387 is 78321361.

16312387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16312387 - 2⁷ = 16312259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16312381) 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, 5712 + ... + 8077.

It is an arithmetic number, because the mean of its divisors is an integer number (1682380).

Almost surely, 2^16312387 is an apocalyptic number.

16312387 is a deficient number, since it is larger than the sum of its proper divisors (3876173).

16312387 is a wasteful number, since it uses less digits than its factorization.

16312387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13822 (or 13809 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 16312387 is about 4038.8596162778. The cubic root of 16312387 is about 253.6135804856.

The spelling of 16312387 in words is "sixteen million, three hundred twelve thousand, three hundred eighty-seven".