3897342646 has 8 divisors (see below), whose sum is σ = 5849525880. Its totient is φ = 1947500688.

The previous prime is 3897342623. The next prime is 3897342649. The reversal of 3897342646 is 6462437983.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 3897342593 and 3897342602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897342649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581151 + ... + 587818.

It is an arithmetic number, because the mean of its divisors is an integer number (731190735).

Almost surely, 2^3897342646 is an apocalyptic number.

3897342646 is a deficient number, since it is larger than the sum of its proper divisors (1952183234).

3897342646 is a wasteful number, since it uses less digits than its factorization.

3897342646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170638.

The product of its digits is 5225472, while the sum is 52.

The square root of 3897342646 is about 62428.7004990493. The cubic root of 3897342646 is about 1573.7033279599.

The spelling of 3897342646 in words is "three billion, eight hundred ninety-seven million, three hundred forty-two thousand, six hundred forty-six".