16223699 has 4 divisors (see below), whose sum is σ = 16232880. Its totient is φ = 16214520.

The previous prime is 16223693. The next prime is 16223707. The reversal of 16223699 is 99632261.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 99632261 = 557 ⋅178873.

It is a cyclic number.

It is not a de Polignac number, because 16223699 - 2⁸ = 16223443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16223693) 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, 1007 + ... + 5784.

It is an arithmetic number, because the mean of its divisors is an integer number (4058220).

Almost surely, 2^16223699 is an apocalyptic number.

16223699 is a deficient number, since it is larger than the sum of its proper divisors (9181).

16223699 is an equidigital number, since it uses as much as digits as its factorization.

16223699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9180.

The product of its digits is 34992, while the sum is 38.

The square root of 16223699 is about 4027.8653155238. The cubic root of 16223699 is about 253.1531253410.

The spelling of 16223699 in words is "sixteen million, two hundred twenty-three thousand, six hundred ninety-nine".