19669001 has 8 divisors (see below), whose sum is σ = 21523104. Its totient is φ = 17825920.

The previous prime is 19668997. The next prime is 19669003. The reversal of 19669001 is 10096691.

It is a happy number.

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 19669001 - 2² = 19668997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19669003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (2690388).

Almost surely, 2^19669001 is an apocalyptic number.

19669001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19669001 is a deficient number, since it is larger than the sum of its proper divisors (1854103).

19669001 is a wasteful number, since it uses less digits than its factorization.

19669001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 19669001 is about 4434.9747462641. The cubic root of 19669001 is about 269.9359747594.

The spelling of 19669001 in words is "nineteen million, six hundred sixty-nine thousand, one".