1897973223 has 8 divisors (see below), whose sum is σ = 2584474368. Its totient is φ = 1238393784.

The previous prime is 1897973221. The next prime is 1897973227. The reversal of 1897973223 is 3223797981.

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

It is not a de Polignac number, because 1897973223 - 2¹ = 1897973221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1897973221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6730261 + ... + 6730542.

It is an arithmetic number, because the mean of its divisors is an integer number (323059296).

Almost surely, 2^1897973223 is an apocalyptic number.

1897973223 is a deficient number, since it is larger than the sum of its proper divisors (686501145).

1897973223 is a wasteful number, since it uses less digits than its factorization.

1897973223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13460853.

The product of its digits is 1143072, while the sum is 51.

The square root of 1897973223 is about 43565.7345054574. The cubic root of 1897973223 is about 1238.1217712498.

The spelling of 1897973223 in words is "one billion, eight hundred ninety-seven million, nine hundred seventy-three thousand, two hundred twenty-three".