366071921 has 2 divisors, whose sum is σ = 366071922. Its totient is φ = 366071920.

The previous prime is 366071911. The next prime is 366071939. The reversal of 366071921 is 129170663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334487521 + 31584400 = 18289^2 + 5620^2 .

It is a cyclic number.

It is not a de Polignac number, because 366071921 - 2¹⁰ = 366070897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (366071911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183035960 + 183035961.

It is an arithmetic number, because the mean of its divisors is an integer number (183035961).

Almost surely, 2^366071921 is an apocalyptic number.

It is an amenable number.

366071921 is a deficient number, since it is larger than the sum of its proper divisors (1).

366071921 is an equidigital number, since it uses as much as digits as its factorization.

366071921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 366071921 is about 19133.0060628224. The cubic root of 366071921 is about 715.3558604784.

The spelling of 366071921 in words is "three hundred sixty-six million, seventy-one thousand, nine hundred twenty-one".