228313723 has 16 divisors (see below), whose sum is σ = 272820960. Its totient is φ = 188608000.

The previous prime is 228313721. The next prime is 228313739. The reversal of 228313723 is 327313822.

It is a cyclic number.

It is not a de Polignac number, because 228313723 - 2¹ = 228313721 is a prime.

It is a super-2 number, since 2×228313723² = 104254312220241458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228313721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15628 + ... + 26473.

It is an arithmetic number, because the mean of its divisors is an integer number (17051310).

Almost surely, 2^228313723 is an apocalyptic number.

228313723 is a deficient number, since it is larger than the sum of its proper divisors (44507237).

228313723 is a wasteful number, since it uses less digits than its factorization.

228313723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42158.

The product of its digits is 12096, while the sum is 31.

The square root of 228313723 is about 15110.0537060594. The cubic root of 228313723 is about 611.1915462745.

Subtracting 228313723 from its reverse (327313822), we obtain a palindrome (99000099).

The spelling of 228313723 in words is "two hundred twenty-eight million, three hundred thirteen thousand, seven hundred twenty-three".