36439369 has 2 divisors, whose sum is σ = 36439370. Its totient is φ = 36439368.

The previous prime is 36439349. The next prime is 36439373. The reversal of 36439369 is 96393463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29214025 + 7225344 = 5405^2 + 2688^2 .

It is an emirp because it is prime and its reverse (96393463) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36439369 is a prime.

It is a super-2 number, since 2×36439369² = 2655655226236322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36439349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18219684 + 18219685.

It is an arithmetic number, because the mean of its divisors is an integer number (18219685).

Almost surely, 2^36439369 is an apocalyptic number.

It is an amenable number.

36439369 is a deficient number, since it is larger than the sum of its proper divisors (1).

36439369 is an equidigital number, since it uses as much as digits as its factorization.

36439369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 43.

The square root of 36439369 is about 6036.5030439817. The cubic root of 36439369 is about 331.5305972257.

The spelling of 36439369 in words is "thirty-six million, four hundred thirty-nine thousand, three hundred sixty-nine".