36531638 has 16 divisors (see below), whose sum is σ = 64377936. Its totient is φ = 15327840.

The previous prime is 36531629. The next prime is 36531647. The reversal of 36531638 is 83613563.

It is an interprime number because it is at equal distance from previous prime (36531629) and next prime (36531647).

It is a junction number, because it is equal to n+sod(n) for n = 36531598 and 36531607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63581 + ... + 64152.

It is an arithmetic number, because the mean of its divisors is an integer number (4023621).

Almost surely, 2^36531638 is an apocalyptic number.

36531638 is a deficient number, since it is larger than the sum of its proper divisors (27846298).

36531638 is a wasteful number, since it uses less digits than its factorization.

36531638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127759.

The product of its digits is 38880, while the sum is 35.

The square root of 36531638 is about 6044.1407991542. The cubic root of 36531638 is about 331.8101868980.

The spelling of 36531638 in words is "thirty-six million, five hundred thirty-one thousand, six hundred thirty-eight".