36613986 has 16 divisors (see below), whose sum is σ = 73577568. Its totient is φ = 12146400.

The previous prime is 36613981. The next prime is 36613991. The reversal of 36613986 is 68931663.

It is an interprime number because it is at equal distance from previous prime (36613981) and next prime (36613991).

It is not an unprimeable number, because it can be changed into a prime (36613981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13195 + ... + 15726.

It is an arithmetic number, because the mean of its divisors is an integer number (4598598).

Almost surely, 2^36613986 is an apocalyptic number.

36613986 is an abundant number, since it is smaller than the sum of its proper divisors (36963582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36613986 is a wasteful number, since it uses less digits than its factorization.

36613986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29137.

The product of its digits is 139968, while the sum is 42.

The square root of 36613986 is about 6050.9491817400. The cubic root of 36613986 is about 332.0593170736.

The spelling of 36613986 in words is "thirty-six million, six hundred thirteen thousand, nine hundred eighty-six".