36487631 has 2 divisors, whose sum is σ = 36487632. Its totient is φ = 36487630.

The previous prime is 36487613. The next prime is 36487669. The reversal of 36487631 is 13678463.

36487631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (36487613) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (36487669) can be obtained adding 36487631 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36487631 is a prime.

It is a super-2 number, since 2×36487631² = 2662694431984322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36487331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18243815 + 18243816.

It is an arithmetic number, because the mean of its divisors is an integer number (18243816).

Almost surely, 2^36487631 is an apocalyptic number.

36487631 is a deficient number, since it is larger than the sum of its proper divisors (1).

36487631 is an equidigital number, since it uses as much as digits as its factorization.

36487631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 36487631 is about 6040.4992343349. The cubic root of 36487631 is about 331.6768975181.

The spelling of 36487631 in words is "thirty-six million, four hundred eighty-seven thousand, six hundred thirty-one".