3686397146 has 4 divisors (see below), whose sum is σ = 5529595722. Its totient is φ = 1843198572.

The previous prime is 3686397053. The next prime is 3686397163. The reversal of 3686397146 is 6417936863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6417936863 = 13 ⋅493687451.

It can be written as a sum of positive squares in only one way, i.e., 3408808225 + 277588921 = 58385^2 + 16661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921599285 + ... + 921599288.

Almost surely, 2^3686397146 is an apocalyptic number.

3686397146 is a deficient number, since it is larger than the sum of its proper divisors (1843198576).

3686397146 is a wasteful number, since it uses less digits than its factorization.

3686397146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843198575.

The product of its digits is 3919104, while the sum is 53.

The square root of 3686397146 is about 60715.7075722584. The cubic root of 3686397146 is about 1544.7826167134.

The spelling of 3686397146 in words is "three billion, six hundred eighty-six million, three hundred ninety-seven thousand, one hundred forty-six".