36645387 has 16 divisors (see below), whose sum is σ = 51937920. Its totient is φ = 22902912.

The previous prime is 36645377. The next prime is 36645391. The reversal of 36645387 is 78354663.

It is not a de Polignac number, because 36645387 - 2¹⁴ = 36629003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36645337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13164 + ... + 15702.

It is an arithmetic number, because the mean of its divisors is an integer number (3246120).

Almost surely, 2^36645387 is an apocalyptic number.

36645387 is a deficient number, since it is larger than the sum of its proper divisors (15292533).

36645387 is a wasteful number, since it uses less digits than its factorization.

36645387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842.

The product of its digits is 362880, while the sum is 42.

The square root of 36645387 is about 6053.5433425391. The cubic root of 36645387 is about 332.1542171957.

It can be divided in two parts, 366 and 45387, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 36645387 in words is "thirty-six million, six hundred forty-five thousand, three hundred eighty-seven".