36636947 has 16 divisors (see below), whose sum is σ = 39674880. Its totient is φ = 33751200.

The previous prime is 36636913. The next prime is 36636983. The reversal of 36636947 is 74963663.

It is a cyclic number.

It is not a de Polignac number, because 36636947 - 2¹² = 36632851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36636898 and 36636907.

It is not an unprimeable number, because it can be changed into a prime (36630947) 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 in 15 ways as a sum of consecutive naturals, for example, 74372 + ... + 74862.

It is an arithmetic number, because the mean of its divisors is an integer number (2479680).

Almost surely, 2^36636947 is an apocalyptic number.

36636947 is a deficient number, since it is larger than the sum of its proper divisors (3037933).

36636947 is a wasteful number, since it uses less digits than its factorization.

36636947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634.

The product of its digits is 489888, while the sum is 44.

The square root of 36636947 is about 6052.8461900167. The cubic root of 36636947 is about 332.1287151514.

The spelling of 36636947 in words is "thirty-six million, six hundred thirty-six thousand, nine hundred forty-seven".