36777731 has 2 divisors, whose sum is σ = 36777732. Its totient is φ = 36777730.

The previous prime is 36777703. The next prime is 36777743. The reversal of 36777731 is 13777763.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36777731 - 2²² = 32583427 is a prime.

It is a super-2 number, since 2×36777731² = 2705202995016722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36777701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18388865 + 18388866.

It is an arithmetic number, because the mean of its divisors is an integer number (18388866).

Almost surely, 2^36777731 is an apocalyptic number.

36777731 is a deficient number, since it is larger than the sum of its proper divisors (1).

36777731 is an equidigital number, since it uses as much as digits as its factorization.

36777731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129654, while the sum is 41.

The square root of 36777731 is about 6064.4646095101. The cubic root of 36777731 is about 332.5535926579.

The spelling of 36777731 in words is "thirty-six million, seven hundred seventy-seven thousand, seven hundred thirty-one".