16742387 has 8 divisors (see below), whose sum is σ = 17651712. Its totient is φ = 15856200.

The previous prime is 16742377. The next prime is 16742393. The reversal of 16742387 is 78324761.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16742387 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 16742387.

It is not an unprimeable number, because it can be changed into a prime (16742347) 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, 4289 + ... + 7202.

It is an arithmetic number, because the mean of its divisors is an integer number (2206464).

Almost surely, 2^16742387 is an apocalyptic number.

16742387 is a deficient number, since it is larger than the sum of its proper divisors (909325).

16742387 is a wasteful number, since it uses less digits than its factorization.

16742387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11569.

The product of its digits is 56448, while the sum is 38.

The square root of 16742387 is about 4091.7462042507. The cubic root of 16742387 is about 255.8227278180.

The spelling of 16742387 in words is "sixteen million, seven hundred forty-two thousand, three hundred eighty-seven".