36790781 has 2 divisors, whose sum is σ = 36790782. Its totient is φ = 36790780.

The previous prime is 36790751. The next prime is 36790811. The reversal of 36790781 is 18709763.

It is a balanced prime because it is at equal distance from previous prime (36790751) and next prime (36790811).

It can be written as a sum of positive squares in only one way, i.e., 32103556 + 4687225 = 5666^2 + 2165^2 .

It is an emirp because it is prime and its reverse (18709763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36790781 - 2⁶ = 36790717 is a prime.

It is a super-2 number, since 2×36790781² = 2707123133179922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36790751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18395390 + 18395391.

It is an arithmetic number, because the mean of its divisors is an integer number (18395391).

Almost surely, 2^36790781 is an apocalyptic number.

It is an amenable number.

36790781 is a deficient number, since it is larger than the sum of its proper divisors (1).

36790781 is an equidigital number, since it uses as much as digits as its factorization.

36790781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 36790781 is about 6065.5404540733. The cubic root of 36790781 is about 332.5929218123.

The spelling of 36790781 in words is "thirty-six million, seven hundred ninety thousand, seven hundred eighty-one".