223970961 has 16 divisors (see below), whose sum is σ = 306592704. Its totient is φ = 145354944.

The previous prime is 223970959. The next prime is 223970983. The reversal of 223970961 is 169079322.

It is not a de Polignac number, because 223970961 - 2¹ = 223970959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223970861) 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 15 ways as a sum of consecutive naturals, for example, 38155 + ... + 43631.

It is an arithmetic number, because the mean of its divisors is an integer number (19162044).

Almost surely, 2^223970961 is an apocalyptic number.

It is an amenable number.

223970961 is a deficient number, since it is larger than the sum of its proper divisors (82621743).

223970961 is a wasteful number, since it uses less digits than its factorization.

223970961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5840.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 223970961 is about 14965.6593907519. The cubic root of 223970961 is about 607.2915493400.

The spelling of 223970961 in words is "two hundred twenty-three million, nine hundred seventy thousand, nine hundred sixty-one".