366640471 has 2 divisors, whose sum is σ = 366640472. Its totient is φ = 366640470.

The previous prime is 366640433. The next prime is 366640481. The reversal of 366640471 is 174046663.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-366640471 is a prime.

It is a super-3 number, since 3×366640471³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 366640471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366640481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183320235 + 183320236.

It is an arithmetic number, because the mean of its divisors is an integer number (183320236).

Almost surely, 2^366640471 is an apocalyptic number.

366640471 is a deficient number, since it is larger than the sum of its proper divisors (1).

366640471 is an equidigital number, since it uses as much as digits as its factorization.

366640471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 366640471 is about 19147.8581308720. The cubic root of 366640471 is about 715.7260110551.

The spelling of 366640471 in words is "three hundred sixty-six million, six hundred forty thousand, four hundred seventy-one".