3865680634 has 8 divisors (see below), whose sum is σ = 5836922208. Its totient is φ = 1920039900.

The previous prime is 3865680631. The next prime is 3865680647. The reversal of 3865680634 is 4360865683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3865680631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6399832 + ... + 6400435.

It is an arithmetic number, because the mean of its divisors is an integer number (729615276).

Almost surely, 2^3865680634 is an apocalyptic number.

3865680634 is a deficient number, since it is larger than the sum of its proper divisors (1971241574).

3865680634 is a wasteful number, since it uses less digits than its factorization.

3865680634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12800420.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The square root of 3865680634 is about 62174.5979802041. The cubic root of 3865680634 is about 1569.4301465499.

The spelling of 3865680634 in words is "three billion, eight hundred sixty-five million, six hundred eighty thousand, six hundred thirty-four".