3720669686 has 16 divisors (see below), whose sum is σ = 5740720128. Its totient is φ = 1807549800.

The previous prime is 3720669671. The next prime is 3720669709. The reversal of 3720669686 is 6869660273.

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, 96830 + ... + 129681.

It is an arithmetic number, because the mean of its divisors is an integer number (358795008).

Almost surely, 2^3720669686 is an apocalyptic number.

3720669686 is a deficient number, since it is larger than the sum of its proper divisors (2020050442).

3720669686 is a wasteful number, since it uses less digits than its factorization.

3720669686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226747.

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

The square root of 3720669686 is about 60997.2924481079. The cubic root of 3720669686 is about 1549.5551530913. Note that the first 3 decimals are identical.

The spelling of 3720669686 in words is "three billion, seven hundred twenty million, six hundred sixty-nine thousand, six hundred eighty-six".