19097869 has 8 divisors (see below), whose sum is σ = 22975040. Its totient is φ = 15507936.

The previous prime is 19097857. The next prime is 19097873. The reversal of 19097869 is 96879091.

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 19097869 - 2⁹ = 19097357 is a prime.

It is a super-2 number, since 2×19097869² = 729457200682322, 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 (19094869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71664 + ... + 71929.

It is an arithmetic number, because the mean of its divisors is an integer number (2871880).

Almost surely, 2^19097869 is an apocalyptic number.

19097869 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

19097869 is a deficient number, since it is larger than the sum of its proper divisors (3877171).

19097869 is a wasteful number, since it uses less digits than its factorization.

19097869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143619.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 19097869 is about 4370.1108681588. The cubic root of 19097869 is about 267.2975450102.

The spelling of 19097869 in words is "nineteen million, ninety-seven thousand, eight hundred sixty-nine".