36628191 has 12 divisors (see below), whose sum is σ = 52965432. Its totient is φ = 24392016.

The previous prime is 36628177. The next prime is 36628231. The reversal of 36628191 is 19182663.

It is not a de Polignac number, because 36628191 - 2⁶ = 36628127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36628171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9900 + ... + 13086.

It is an arithmetic number, because the mean of its divisors is an integer number (4413786).

Almost surely, 2^36628191 is an apocalyptic number.

36628191 is a deficient number, since it is larger than the sum of its proper divisors (16337241).

36628191 is a wasteful number, since it uses less digits than its factorization.

36628191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470 (or 4467 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 36628191 is about 6052.1228507029. The cubic root of 36628191 is about 332.1022541517.

The spelling of 36628191 in words is "thirty-six million, six hundred twenty-eight thousand, one hundred ninety-one".