16627001 has 4 divisors (see below), whose sum is σ = 16940772. Its totient is φ = 16313232.

The previous prime is 16626989. The next prime is 16627057. The reversal of 16627001 is 10072661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10072661 = 331 ⋅30431.

It can be written as a sum of positive squares in 2 ways, for example, as 11560000 + 5067001 = 3400^2 + 2251^2 .

It is a cyclic number.

It is not a de Polignac number, because 16627001 - 2²² = 12432697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16627081) 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, 156806 + ... + 156911.

It is an arithmetic number, because the mean of its divisors is an integer number (4235193).

Almost surely, 2^16627001 is an apocalyptic number.

It is an amenable number.

16627001 is a deficient number, since it is larger than the sum of its proper divisors (313771).

16627001 is an equidigital number, since it uses as much as digits as its factorization.

16627001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313770.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 16627001 is about 4077.6219785556. The cubic root of 16627001 is about 255.2336753303.

Adding to 16627001 its reverse (10072661), we get a palindrome (26699662).

The spelling of 16627001 in words is "sixteen million, six hundred twenty-seven thousand, one".