16787049 has 4 divisors (see below), whose sum is σ = 22382736. Its totient is φ = 11191364.

The previous prime is 16787009. The next prime is 16787059. The reversal of 16787049 is 94078761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16787049 - 2¹³ = 16778857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16787049.

It is not an unprimeable number, because it can be changed into a prime (16787009) 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, 2797839 + ... + 2797844.

It is an arithmetic number, because the mean of its divisors is an integer number (5595684).

Almost surely, 2^16787049 is an apocalyptic number.

It is an amenable number.

16787049 is a deficient number, since it is larger than the sum of its proper divisors (5595687).

16787049 is an equidigital number, since it uses as much as digits as its factorization.

16787049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595686.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 16787049 is about 4097.2001415601. The cubic root of 16787049 is about 256.0500034567.

The spelling of 16787049 in words is "sixteen million, seven hundred eighty-seven thousand, forty-nine".