223698890 has 8 divisors (see below), whose sum is σ = 402658020. Its totient is φ = 89479552.

The previous prime is 223698889. The next prime is 223698899. The reversal of 223698890 is 98896322.

It can be written as a sum of positive squares in 2 ways, for example, as 200533921 + 23164969 = 14161^2 + 4813^2 .

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

It is not an unprimeable number, because it can be changed into a prime (223698899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11184935 + ... + 11184954.

Almost surely, 2^223698890 is an apocalyptic number.

223698890 is a deficient number, since it is larger than the sum of its proper divisors (178959130).

223698890 is a wasteful number, since it uses less digits than its factorization.

223698890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22369896.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 223698890 is about 14956.5667851951. The cubic root of 223698890 is about 607.0455451749.

The spelling of 223698890 in words is "two hundred twenty-three million, six hundred ninety-eight thousand, eight hundred ninety".