36388643 has 2 divisors, whose sum is σ = 36388644. Its totient is φ = 36388642.

The previous prime is 36388633. The next prime is 36388661. The reversal of 36388643 is 34688363.

It is a weak prime.

It is an emirp because it is prime and its reverse (34688363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36388643 - 2⁶ = 36388579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36388643.

It is not a weakly prime, because it can be changed into another prime (36388613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18194321 + 18194322.

It is an arithmetic number, because the mean of its divisors is an integer number (18194322).

Almost surely, 2^36388643 is an apocalyptic number.

36388643 is a deficient number, since it is larger than the sum of its proper divisors (1).

36388643 is an equidigital number, since it uses as much as digits as its factorization.

36388643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 41.

The square root of 36388643 is about 6032.2999759627. The cubic root of 36388643 is about 331.3766883159.

The spelling of 36388643 in words is "thirty-six million, three hundred eighty-eight thousand, six hundred forty-three".