3726605667 has 4 divisors (see below), whose sum is σ = 4968807560. Its totient is φ = 2484403776.

The previous prime is 3726605657. The next prime is 3726605671. The reversal of 3726605667 is 7665066273.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3726605667 - 2⁴ = 3726605651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3726605657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621100942 + ... + 621100947.

It is an arithmetic number, because the mean of its divisors is an integer number (1242201890).

Almost surely, 2^3726605667 is an apocalyptic number.

3726605667 is a deficient number, since it is larger than the sum of its proper divisors (1242201893).

3726605667 is a wasteful number, since it uses less digits than its factorization.

3726605667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242201892.

The product of its (nonzero) digits is 1905120, while the sum is 48.

The square root of 3726605667 is about 61045.9307980475. The cubic root of 3726605667 is about 1550.3787720871.

The spelling of 3726605667 in words is "three billion, seven hundred twenty-six million, six hundred five thousand, six hundred sixty-seven".