366905969 has 2 divisors, whose sum is σ = 366905970. Its totient is φ = 366905968.

The previous prime is 366905947. The next prime is 366905977. The reversal of 366905969 is 969509663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243984400 + 122921569 = 15620^2 + 11087^2 .

It is a cyclic number.

It is not a de Polignac number, because 366905969 - 2²⁸ = 98470513 is a prime.

It is a super-2 number, since 2×366905969² = 269239980175657922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 366905969.

It is not a weakly prime, because it can be changed into another prime (366905939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183452984 + 183452985.

It is an arithmetic number, because the mean of its divisors is an integer number (183452985).

Almost surely, 2^366905969 is an apocalyptic number.

It is an amenable number.

366905969 is a deficient number, since it is larger than the sum of its proper divisors (1).

366905969 is an equidigital number, since it uses as much as digits as its factorization.

366905969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2361960, while the sum is 53.

The square root of 366905969 is about 19154.7897143247. The cubic root of 366905969 is about 715.8987306448.

The spelling of 366905969 in words is "three hundred sixty-six million, nine hundred five thousand, nine hundred sixty-nine".