16777401 has 4 divisors (see below), whose sum is σ = 22369872. Its totient is φ = 11184932.

The previous prime is 16777381. The next prime is 16777421. The reversal of 16777401 is 10477761.

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 an interprime number because it is at equal distance from previous prime (16777381) and next prime (16777421).

It is a cyclic number.

It is not a de Polignac number, because 16777401 - 2⁶ = 16777337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16777421) 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, 2796231 + ... + 2796236.

It is an arithmetic number, because the mean of its divisors is an integer number (5592468).

Almost surely, 2^16777401 is an apocalyptic number.

It is an amenable number.

16777401 is a deficient number, since it is larger than the sum of its proper divisors (5592471).

16777401 is an equidigital number, since it uses as much as digits as its factorization.

16777401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592470.

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 16777401 is about 4096.0225829456. The cubic root of 16777401 is about 256.0009409552. Note that the first 3 decimals are identical.

The spelling of 16777401 in words is "sixteen million, seven hundred seventy-seven thousand, four hundred one".