19396869 has 4 divisors (see below), whose sum is σ = 25862496. Its totient is φ = 12931244.

The previous prime is 19396849. The next prime is 19396873. The reversal of 19396869 is 96869391.

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 19396869 - 2¹⁷ = 19265797 is a prime.

It is a super-2 number, since 2×19396869² = 752477054006322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19396829) 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 3 ways as a sum of consecutive naturals, for example, 3232809 + ... + 3232814.

It is an arithmetic number, because the mean of its divisors is an integer number (6465624).

Almost surely, 2^19396869 is an apocalyptic number.

It is an amenable number.

19396869 is a deficient number, since it is larger than the sum of its proper divisors (6465627).

19396869 is an equidigital number, since it uses as much as digits as its factorization.

19396869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465626.

The product of its digits is 629856, while the sum is 51.

The square root of 19396869 is about 4404.1876663012. The cubic root of 19396869 is about 268.6852821270.

The spelling of 19396869 in words is "nineteen million, three hundred ninety-six thousand, eight hundred sixty-nine".