19297969 has 8 divisors (see below), whose sum is σ = 19629288. Its totient is φ = 18969600.

The previous prime is 19297931. The next prime is 19297973. The reversal of 19297969 is 96979291.

It can be written as a sum of positive squares in 4 ways, for example, as 4359744 + 14938225 = 2088^2 + 3865^2 .

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 19297969 - 2⁹ = 19297457 is a prime.

It is a super-2 number, since 2×19297969² = 744823215049922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19297919) 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, 15249 + ... + 16465.

It is an arithmetic number, because the mean of its divisors is an integer number (2453661).

Almost surely, 2^19297969 is an apocalyptic number.

It is an amenable number.

19297969 is a deficient number, since it is larger than the sum of its proper divisors (331319).

19297969 is a wasteful number, since it uses less digits than its factorization.

19297969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its digits is 551124, while the sum is 52.

The square root of 19297969 is about 4392.9453672906. The cubic root of 19297969 is about 268.2278497814.

The spelling of 19297969 in words is "nineteen million, two hundred ninety-seven thousand, nine hundred sixty-nine".