36621799 has 2 divisors, whose sum is σ = 36621800. Its totient is φ = 36621798.

The previous prime is 36621763. The next prime is 36621803. The reversal of 36621799 is 99712663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36621799 - 2¹³ = 36613607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36621719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18310899 + 18310900.

It is an arithmetic number, because the mean of its divisors is an integer number (18310900).

Almost surely, 2^36621799 is an apocalyptic number.

36621799 is a deficient number, since it is larger than the sum of its proper divisors (1).

36621799 is an equidigital number, since it uses as much as digits as its factorization.

36621799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 36621799 is about 6051.5947484940. The cubic root of 36621799 is about 332.0829345962.

The spelling of 36621799 in words is "thirty-six million, six hundred twenty-one thousand, seven hundred ninety-nine".