3643721614 has 16 divisors (see below), whose sum is σ = 5943161952. Its totient is φ = 1665389088.

The previous prime is 3643721603. The next prime is 3643721629. The reversal of 3643721614 is 4161273463.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677629 + ... + 682984.

It is an arithmetic number, because the mean of its divisors is an integer number (371447622).

Almost surely, 2^3643721614 is an apocalyptic number.

3643721614 is a deficient number, since it is larger than the sum of its proper divisors (2299440338).

3643721614 is a wasteful number, since it uses less digits than its factorization.

3643721614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360731.

The product of its digits is 72576, while the sum is 37.

The square root of 3643721614 is about 60363.2472121903. The cubic root of 3643721614 is about 1538.7984125093.

The spelling of 3643721614 in words is "three billion, six hundred forty-three million, seven hundred twenty-one thousand, six hundred fourteen".