36943813 has 2 divisors, whose sum is σ = 36943814. Its totient is φ = 36943812.

The previous prime is 36943807. The next prime is 36943817. The reversal of 36943813 is 31834963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26040609 + 10903204 = 5103^2 + 3302^2 .

It is a cyclic number.

It is not a de Polignac number, because 36943813 - 2¹³ = 36935621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36943817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18471906 + 18471907.

It is an arithmetic number, because the mean of its divisors is an integer number (18471907).

Almost surely, 2^36943813 is an apocalyptic number.

It is an amenable number.

36943813 is a deficient number, since it is larger than the sum of its proper divisors (1).

36943813 is an equidigital number, since it uses as much as digits as its factorization.

36943813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 36943813 is about 6078.1422326234. The cubic root of 36943813 is about 333.0534262441.

The spelling of 36943813 in words is "thirty-six million, nine hundred forty-three thousand, eight hundred thirteen".