16223007 has 4 divisors (see below), whose sum is σ = 21630680. Its totient is φ = 10815336.

The previous prime is 16222991. The next prime is 16223021. The reversal of 16223007 is 70032261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16223007 - 2⁴ = 16222991 is a prime.

It is a super-2 number, since 2×16223007² = 526371912244098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16223087) 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, 2703832 + ... + 2703837.

It is an arithmetic number, because the mean of its divisors is an integer number (5407670).

Almost surely, 2^16223007 is an apocalyptic number.

16223007 is a deficient number, since it is larger than the sum of its proper divisors (5407673).

16223007 is an equidigital number, since it uses as much as digits as its factorization.

16223007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407672.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 16223007 is about 4027.7794130265. The cubic root of 16223007 is about 253.1495259881.

Adding to 16223007 its reverse (70032261), we get a palindrome (86255268).

The spelling of 16223007 in words is "sixteen million, two hundred twenty-three thousand, seven".