3640886086 has 4 divisors (see below), whose sum is σ = 5461329132. Its totient is φ = 1820443042.

The previous prime is 3640886083. The next prime is 3640886101. The reversal of 3640886086 is 6806880463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6806880463 = 49297 ⋅138079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640886083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910221520 + ... + 910221523.

It is an arithmetic number, because the mean of its divisors is an integer number (1365332283).

Almost surely, 2^3640886086 is an apocalyptic number.

3640886086 is a deficient number, since it is larger than the sum of its proper divisors (1820443046).

3640886086 is a wasteful number, since it uses less digits than its factorization.

3640886086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820443045.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The square root of 3640886086 is about 60339.7554353678. The cubic root of 3640886086 is about 1538.3991468891.

The spelling of 3640886086 in words is "three billion, six hundred forty million, eight hundred eighty-six thousand, eighty-six".