16777001 has 4 divisors (see below), whose sum is σ = 17027472. Its totient is φ = 16526532.

The previous prime is 16776989. The next prime is 16777027. The reversal of 16777001 is 10077761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10077761 = 29 ⋅347509.

It is a cyclic number.

It is not a de Polignac number, because 16777001 - 2⁶ = 16776937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16777601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125135 + ... + 125268.

It is an arithmetic number, because the mean of its divisors is an integer number (4256868).

Almost surely, 2^16777001 is an apocalyptic number.

It is an amenable number.

16777001 is a deficient number, since it is larger than the sum of its proper divisors (250471).

16777001 is an equidigital number, since it uses as much as digits as its factorization.

16777001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250470.

The product of its (nonzero) digits is 2058, while the sum is 29.

The square root of 16777001 is about 4095.9737547987. The cubic root of 16777001 is about 255.9989064488.

The spelling of 16777001 in words is "sixteen million, seven hundred seventy-seven thousand, one".