228396773 has 8 divisors (see below), whose sum is σ = 255237696. Its totient is φ = 202568800.

The previous prime is 228396767. The next prime is 228396781. The reversal of 228396773 is 377693822.

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 228396773 - 2⁴ = 228396757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228396713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252761 + ... + 253662.

It is an arithmetic number, because the mean of its divisors is an integer number (31904712).

Almost surely, 2^228396773 is an apocalyptic number.

It is an amenable number.

228396773 is a deficient number, since it is larger than the sum of its proper divisors (26840923).

228396773 is a wasteful number, since it uses less digits than its factorization.

228396773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506475.

The product of its digits is 762048, while the sum is 47.

The square root of 228396773 is about 15112.8016264358. The cubic root of 228396773 is about 611.2656450538.

The spelling of 228396773 in words is "two hundred twenty-eight million, three hundred ninety-six thousand, seven hundred seventy-three".