16213393 has 8 divisors (see below), whose sum is σ = 19619712. Its totient is φ = 13079616.

The previous prime is 16213391. The next prime is 16213399. The reversal of 16213393 is 39331261.

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 16213393 - 2¹ = 16213391 is a prime.

It is a super-2 number, since 2×16213393² = 525748225144898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16213391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68005 + ... + 68242.

It is an arithmetic number, because the mean of its divisors is an integer number (2452464).

Almost surely, 2^16213393 is an apocalyptic number.

It is an amenable number.

16213393 is a deficient number, since it is larger than the sum of its proper divisors (3406319).

16213393 is a wasteful number, since it uses less digits than its factorization.

16213393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136271.

The product of its digits is 2916, while the sum is 28.

The square root of 16213393 is about 4026.5857745738. The cubic root of 16213393 is about 253.0995093571.

The spelling of 16213393 in words is "sixteen million, two hundred thirteen thousand, three hundred ninety-three".