16724487 has 8 divisors (see below), whose sum is σ = 24014704. Its totient is φ = 10291968.

The previous prime is 16724483. The next prime is 16724501. The reversal of 16724487 is 78442761.

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

It is not a de Polignac number, because 16724487 - 2² = 16724483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 428833 = 16724487 / (1 + 6 + 7 + 2 + 4 + 4 + 8 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16724483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214378 + ... + 214455.

It is an arithmetic number, because the mean of its divisors is an integer number (3001838).

Almost surely, 2^16724487 is an apocalyptic number.

16724487 is a deficient number, since it is larger than the sum of its proper divisors (7290217).

16724487 is a wasteful number, since it uses less digits than its factorization.

16724487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428849.

The product of its digits is 75264, while the sum is 39.

The square root of 16724487 is about 4089.5582891065. The cubic root of 16724487 is about 255.7315249776.

It can be divided in two parts, 167244 and 87, that added together give a triangular number (167331 = T₅₇₈).

The spelling of 16724487 in words is "sixteen million, seven hundred twenty-four thousand, four hundred eighty-seven".