36718993 has 2 divisors, whose sum is σ = 36718994. Its totient is φ = 36718992.

The previous prime is 36718961. The next prime is 36719021. The reversal of 36718993 is 39981763.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24830289 + 11888704 = 4983^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 36718993 - 2⁵ = 36718961 is a prime.

It is not a weakly prime, because it can be changed into another prime (36718093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18359496 + 18359497.

It is an arithmetic number, because the mean of its divisors is an integer number (18359497).

Almost surely, 2^36718993 is an apocalyptic number.

It is an amenable number.

36718993 is a deficient number, since it is larger than the sum of its proper divisors (1).

36718993 is an equidigital number, since it uses as much as digits as its factorization.

36718993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 36718993 is about 6059.6198725663. The cubic root of 36718993 is about 332.3764570137.

The spelling of 36718993 in words is "thirty-six million, seven hundred eighteen thousand, nine hundred ninety-three".