223897505 has 8 divisors (see below), whose sum is σ = 289344552. Its totient is φ = 165339648.

The previous prime is 223897489. The next prime is 223897537. The reversal of 223897505 is 505798322.

223897505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11641744 + 212255761 = 3412^2 + 14569^2 .

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 223897505 - 2⁴ = 223897489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1722224 + ... + 1722353.

It is an arithmetic number, because the mean of its divisors is an integer number (36168069).

Almost surely, 2^223897505 is an apocalyptic number.

It is an amenable number.

223897505 is a deficient number, since it is larger than the sum of its proper divisors (65447047).

223897505 is a wasteful number, since it uses less digits than its factorization.

223897505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444595.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 223897505 is about 14963.2050376916. The cubic root of 223897505 is about 607.2251507236.

The spelling of 223897505 in words is "two hundred twenty-three million, eight hundred ninety-seven thousand, five hundred five".