228002997 has 16 divisors (see below), whose sum is σ = 322201152. Its totient is φ = 142920960.

The previous prime is 228002977. The next prime is 228003037. The reversal of 228002997 is 799200822.

It is not a de Polignac number, because 228002997 - 2¹⁸ = 227740853 is a prime.

228002997 is a modest number, since divided by 2997 gives 228 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228002977) 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, 82122 + ... + 84852.

It is an arithmetic number, because the mean of its divisors is an integer number (20137572).

Almost surely, 2^228002997 is an apocalyptic number.

It is an amenable number.

228002997 is a deficient number, since it is larger than the sum of its proper divisors (94198155).

228002997 is a wasteful number, since it uses less digits than its factorization.

228002997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 228002997 is about 15099.7681108022. The cubic root of 228002997 is about 610.9141511741.

The spelling of 228002997 in words is "two hundred twenty-eight million, two thousand, nine hundred ninety-seven".