16620007 has 8 divisors (see below), whose sum is σ = 17450496. Its totient is φ = 15798552.

The previous prime is 16620001. The next prime is 16620013. The reversal of 16620007 is 70002661.

It is an interprime number because it is at equal distance from previous prime (16620001) and next prime (16620013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16620007 - 2⁷ = 16619879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16620007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16620001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1678 + ... + 6004.

It is an arithmetic number, because the mean of its divisors is an integer number (2181312).

Almost surely, 2^16620007 is an apocalyptic number.

16620007 is a deficient number, since it is larger than the sum of its proper divisors (830489).

16620007 is a wasteful number, since it uses less digits than its factorization.

16620007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 16620007 is about 4076.7642806520. The cubic root of 16620007 is about 255.1978830532.

Adding to 16620007 its reverse (70002661), we get a palindrome (86622668).

The spelling of 16620007 in words is "sixteen million, six hundred twenty thousand, seven".