36633731 has 2 divisors, whose sum is σ = 36633732. Its totient is φ = 36633730.

The previous prime is 36633719. The next prime is 36633739. The reversal of 36633731 is 13733663.

It is a strong prime.

It is an emirp because it is prime and its reverse (13733663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36633731 - 2¹⁰ = 36632707 is a prime.

It is a super-2 number, since 2×36633731² = 2684060493960722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36633739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18316865 + 18316866.

It is an arithmetic number, because the mean of its divisors is an integer number (18316866).

Almost surely, 2^36633731 is an apocalyptic number.

36633731 is a deficient number, since it is larger than the sum of its proper divisors (1).

36633731 is an equidigital number, since it uses as much as digits as its factorization.

36633731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 32.

The square root of 36633731 is about 6052.5805240410. The cubic root of 36633731 is about 332.1189967543.

The spelling of 36633731 in words is "thirty-six million, six hundred thirty-three thousand, seven hundred thirty-one".