228660723 has 12 divisors (see below), whose sum is σ = 330507528. Its totient is φ = 152339040.

The previous prime is 228660701. The next prime is 228660787. The reversal of 228660723 is 327066822.

228660723 is a `hidden beast` number, since 2 + 28 + 6 + 607 + 23 = 666.

It is not a de Polignac number, because 228660723 - 2¹⁶ = 228595187 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (228660023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7383 + ... + 22623.

It is an arithmetic number, because the mean of its divisors is an integer number (27542294).

Almost surely, 2^228660723 is an apocalyptic number.

228660723 is a deficient number, since it is larger than the sum of its proper divisors (101846805).

228660723 is a wasteful number, since it uses less digits than its factorization.

228660723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16914 (or 16911 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 228660723 is about 15121.5317676484. The cubic root of 228660723 is about 611.5010270337.

The spelling of 228660723 in words is "two hundred twenty-eight million, six hundred sixty thousand, seven hundred twenty-three".