228007957 has 2 divisors, whose sum is σ = 228007958. Its totient is φ = 228007956.

The previous prime is 228007937. The next prime is 228007987. The reversal of 228007957 is 759700822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138156516 + 89851441 = 11754^2 + 9479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228007957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228007937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114003978 + 114003979.

It is an arithmetic number, because the mean of its divisors is an integer number (114003979).

Almost surely, 2^228007957 is an apocalyptic number.

It is an amenable number.

228007957 is a deficient number, since it is larger than the sum of its proper divisors (1).

228007957 is an equidigital number, since it uses as much as digits as its factorization.

228007957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 228007957 is about 15099.9323508418. The cubic root of 228007957 is about 610.9185811045.

The spelling of 228007957 in words is "two hundred twenty-eight million, seven thousand, nine hundred fifty-seven".