228961497 has 8 divisors (see below), whose sum is σ = 306864544. Its totient is φ = 151849728.

The previous prime is 228961417. The next prime is 228961501. The reversal of 228961497 is 794169822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228961497 - 2¹² = 228957401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228961417) 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, 197143 + ... + 198300.

It is an arithmetic number, because the mean of its divisors is an integer number (38358068).

Almost surely, 2^228961497 is an apocalyptic number.

It is an amenable number.

228961497 is a deficient number, since it is larger than the sum of its proper divisors (77903047).

228961497 is a wasteful number, since it uses less digits than its factorization.

228961497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395639.

The product of its digits is 435456, while the sum is 48.

The square root of 228961497 is about 15131.4737220140. The cubic root of 228961497 is about 611.7690267492.

The spelling of 228961497 in words is "two hundred twenty-eight million, nine hundred sixty-one thousand, four hundred ninety-seven".