223978706 has 48 divisors (see below), whose sum is σ = 416305656. Its totient is φ = 89800704.

The previous prime is 223978693. The next prime is 223978721. The reversal of 223978706 is 607879322.

223978706 is digitally balanced in base 2 and base 3, because in such bases 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 223353025 + 625681 = 14945^2 + 791^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387890 + ... + 388466.

Almost surely, 2^223978706 is an apocalyptic number.

223978706 is a deficient number, since it is larger than the sum of its proper divisors (192326950).

223978706 is a wasteful number, since it uses less digits than its factorization.

223978706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 223978706 is about 14965.9181475778. The cubic root of 223978706 is about 607.2985493827.

The spelling of 223978706 in words is "two hundred twenty-three million, nine hundred seventy-eight thousand, seven hundred six".