19214393 has 4 divisors (see below), whose sum is σ = 20961168. Its totient is φ = 17467620.

The previous prime is 19214383. The next prime is 19214413. The reversal of 19214393 is 39341291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19214393 - 2²⁴ = 2437177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19214323) 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, 873371 + ... + 873392.

It is an arithmetic number, because the mean of its divisors is an integer number (5240292).

Almost surely, 2^19214393 is an apocalyptic number.

It is an amenable number.

19214393 is a deficient number, since it is larger than the sum of its proper divisors (1746775).

19214393 is a wasteful number, since it uses less digits than its factorization.

19214393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746774.

The product of its digits is 5832, while the sum is 32.

The square root of 19214393 is about 4383.4225212726. The cubic root of 19214393 is about 267.8400740734.

It can be divided in two parts, 19 and 214393, that added together give a palindrome (214412).

The spelling of 19214393 in words is "nineteen million, two hundred fourteen thousand, three hundred ninety-three".