228508877 has 16 divisors (see below), whose sum is σ = 248693760. Its totient is φ = 209255472.

The previous prime is 228508853. The next prime is 228508913. The reversal of 228508877 is 778805822.

It is a cyclic number.

It is not a de Polignac number, because 228508877 - 2¹² = 228504781 is a prime.

It is a super-2 number, since 2×228508877² = 104432613735602258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228508807) 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, 72578 + ... + 75660.

It is an arithmetic number, because the mean of its divisors is an integer number (15543360).

Almost surely, 2^228508877 is an apocalyptic number.

It is an amenable number.

228508877 is a deficient number, since it is larger than the sum of its proper divisors (20184883).

228508877 is a wasteful number, since it uses less digits than its factorization.

228508877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232.

The product of its (nonzero) digits is 501760, while the sum is 47.

The square root of 228508877 is about 15116.5100800416. The cubic root of 228508877 is about 611.3656378786.

The spelling of 228508877 in words is "two hundred twenty-eight million, five hundred eight thousand, eight hundred seventy-seven".