36839729 has 2 divisors, whose sum is σ = 36839730. Its totient is φ = 36839728.

The previous prime is 36839723. The next prime is 36839741. The reversal of 36839729 is 92793863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34199104 + 2640625 = 5848^2 + 1625^2 .

It is an emirp because it is prime and its reverse (92793863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36839729 - 2²⁰ = 35791153 is a prime.

It is not a weakly prime, because it can be changed into another prime (36839723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18419864 + 18419865.

It is an arithmetic number, because the mean of its divisors is an integer number (18419865).

Almost surely, 2^36839729 is an apocalyptic number.

It is an amenable number.

36839729 is a deficient number, since it is larger than the sum of its proper divisors (1).

36839729 is an equidigital number, since it uses as much as digits as its factorization.

36839729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 36839729 is about 6069.5740377723. The cubic root of 36839729 is about 332.7403549777.

The spelling of 36839729 in words is "thirty-six million, eight hundred thirty-nine thousand, seven hundred twenty-nine".