223490897 has 8 divisors (see below), whose sum is σ = 255512256. Its totient is φ = 191493072.

The previous prime is 223490893. The next prime is 223490899. The reversal of 223490897 is 798094322.

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 223490897 - 2² = 223490893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223490893) 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, 26018 + ... + 33524.

It is an arithmetic number, because the mean of its divisors is an integer number (31939032).

Almost surely, 2^223490897 is an apocalyptic number.

It is an amenable number.

223490897 is a deficient number, since it is larger than the sum of its proper divisors (32021359).

223490897 is an equidigital number, since it uses as much as digits as its factorization.

223490897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11767.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 223490897 is about 14949.6119347627. The cubic root of 223490897 is about 606.8573452000.

The spelling of 223490897 in words is "two hundred twenty-three million, four hundred ninety thousand, eight hundred ninety-seven".