366649901 has 2 divisors, whose sum is σ = 366649902. Its totient is φ = 366649900.

The previous prime is 366649861. The next prime is 366649937. The reversal of 366649901 is 109946663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286117225 + 80532676 = 16915^2 + 8974^2 .

It is an emirp because it is prime and its reverse (109946663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 366649901 - 2⁶ = 366649837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366649991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183324950 + 183324951.

It is an arithmetic number, because the mean of its divisors is an integer number (183324951).

Almost surely, 2^366649901 is an apocalyptic number.

It is an amenable number.

366649901 is a deficient number, since it is larger than the sum of its proper divisors (1).

366649901 is an equidigital number, since it uses as much as digits as its factorization.

366649901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 366649901 is about 19148.1043709293. The cubic root of 366649901 is about 715.7321471647.

The spelling of 366649901 in words is "three hundred sixty-six million, six hundred forty-nine thousand, nine hundred one".