3722709 has 8 divisors (see below), whose sum is σ = 4989600. Its totient is φ = 2468816.

The previous prime is 3722699. The next prime is 3722713. The reversal of 3722709 is 9072273.

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

It is a cyclic number.

It is not a de Polignac number, because 3722709 - 2¹² = 3718613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2559 + ... + 3740.

It is an arithmetic number, because the mean of its divisors is an integer number (623700).

Almost surely, 2^3722709 is an apocalyptic number.

It is an amenable number.

3722709 is a deficient number, since it is larger than the sum of its proper divisors (1266891).

3722709 is a wasteful number, since it uses less digits than its factorization.

3722709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 3722709 is about 1929.4322999266. The cubic root of 3722709 is about 154.9838207184.

It can be divided in two parts, 372 and 2709, that added together give a triangular number (3081 = T₇₈).

The spelling of 3722709 in words is "three million, seven hundred twenty-two thousand, seven hundred nine".