3721568 has 24 divisors (see below), whose sum is σ = 7713720. Its totient is φ = 1762560.

The previous prime is 3721559. The next prime is 3721583. The reversal of 3721568 is 8651273.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453 + ... + 3668.

It is an arithmetic number, because the mean of its divisors is an integer number (321405).

Almost surely, 2^3721568 is an apocalyptic number.

3721568 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3721568 is an abundant number, since it is smaller than the sum of its proper divisors (3992152).

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

3721568 is a wasteful number, since it uses less digits than its factorization.

3721568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6150 (or 6142 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 3721568 is about 1929.1365944380. The cubic root of 3721568 is about 154.9679850632.

The spelling of 3721568 in words is "three million, seven hundred twenty-one thousand, five hundred sixty-eight".