16748977 has 4 divisors (see below), whose sum is σ = 19141696. Its totient is φ = 14356260.

The previous prime is 16748939. The next prime is 16748983. The reversal of 16748977 is 77984761.

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 a de Polignac number, because none of the positive numbers 2^k-16748977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16748977.

It is not an unprimeable number, because it can be changed into a prime (16748987) 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, 1196349 + ... + 1196362.

It is an arithmetic number, because the mean of its divisors is an integer number (4785424).

Almost surely, 2^16748977 is an apocalyptic number.

It is an amenable number.

16748977 is a deficient number, since it is larger than the sum of its proper divisors (2392719).

16748977 is an equidigital number, since it uses as much as digits as its factorization.

16748977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392718.

The product of its digits is 592704, while the sum is 49.

The square root of 16748977 is about 4092.5514046863. The cubic root of 16748977 is about 255.8562883577.

The spelling of 16748977 in words is "sixteen million, seven hundred forty-eight thousand, nine hundred seventy-seven".