16147487 has 4 divisors (see below), whose sum is σ = 16254576. Its totient is φ = 16040400.

The previous prime is 16147471. The next prime is 16147513. The reversal of 16147487 is 78474161.

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

It is a cyclic number.

It is not a de Polignac number, because 16147487 - 2⁴ = 16147471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16147487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16147427) 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, 53318 + ... + 53619.

It is an arithmetic number, because the mean of its divisors is an integer number (4063644).

Almost surely, 2^16147487 is an apocalyptic number.

16147487 is a deficient number, since it is larger than the sum of its proper divisors (107089).

16147487 is a wasteful number, since it uses less digits than its factorization.

16147487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107088.

The product of its digits is 37632, while the sum is 38.

The square root of 16147487 is about 4018.3935845061. The cubic root of 16147487 is about 252.7561012993.

The spelling of 16147487 in words is "sixteen million, one hundred forty-seven thousand, four hundred eighty-seven".