228551679 has 16 divisors (see below), whose sum is σ = 341763840. Its totient is φ = 150941880.

The previous prime is 228551677. The next prime is 228551681. The reversal of 228551679 is 976155822.

228551679 is a `hidden beast` number, since 2 + 28 + 551 + 6 + 79 = 666.

It is an interprime number because it is at equal distance from previous prime (228551677) and next prime (228551681).

It is not a de Polignac number, because 228551679 - 2¹ = 228551677 is a prime.

It is a super-4 number, since 4×228551679⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228551677) 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, 36667 + ... + 42444.

It is an arithmetic number, because the mean of its divisors is an integer number (21360240).

Almost surely, 2^228551679 is an apocalyptic number.

228551679 is a deficient number, since it is larger than the sum of its proper divisors (113212161).

228551679 is a wasteful number, since it uses less digits than its factorization.

228551679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79227 (or 79221 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 228551679 is about 15117.9257505784. The cubic root of 228551679 is about 611.4038071301.

The spelling of 228551679 in words is "two hundred twenty-eight million, five hundred fifty-one thousand, six hundred seventy-nine".