228752997 has 16 divisors (see below), whose sum is σ = 333972480. Its totient is φ = 138121200.

The previous prime is 228752903. The next prime is 228753001. The reversal of 228752997 is 799257822.

It is not a de Polignac number, because 228752997 - 2¹⁵ = 228720229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228752497) 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, 3847 + ... + 21732.

It is an arithmetic number, because the mean of its divisors is an integer number (20873280).

Almost surely, 2^228752997 is an apocalyptic number.

It is an amenable number.

228752997 is a deficient number, since it is larger than the sum of its proper divisors (105219483).

228752997 is a wasteful number, since it uses less digits than its factorization.

228752997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25864.

The product of its digits is 1270080, while the sum is 51.

The square root of 228752997 is about 15124.5825396935. The cubic root of 228752997 is about 611.5832712377.

The spelling of 228752997 in words is "two hundred twenty-eight million, seven hundred fifty-two thousand, nine hundred ninety-seven".