19229997 has 8 divisors (see below), whose sum is σ = 25889344. Its totient is φ = 12695328.

The previous prime is 19229989. The next prime is 19229999. The reversal of 19229997 is 79992291.

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

It is not a de Polignac number, because 19229997 - 2³ = 19229989 is a prime.

It is a super-3 number, since 3×19229997³ (a number of 23 digits) contains 333 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 (19229999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30808 + ... + 31425.

It is an arithmetic number, because the mean of its divisors is an integer number (3236168).

Almost surely, 2^19229997 is an apocalyptic number.

It is an amenable number.

19229997 is a deficient number, since it is larger than the sum of its proper divisors (6659347).

19229997 is a wasteful number, since it uses less digits than its factorization.

19229997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62339.

The product of its digits is 183708, while the sum is 48.

The square root of 19229997 is about 4385.2020477967. The cubic root of 19229997 is about 267.9125587237.

The spelling of 19229997 in words is "nineteen million, two hundred twenty-nine thousand, nine hundred ninety-seven".