3672729 has 8 divisors (see below), whose sum is σ = 5441120. Its totient is φ = 2448468.

The previous prime is 3672727. The next prime is 3672733. The reversal of 3672729 is 9272763.

It is not a de Polignac number, because 3672729 - 2¹ = 3672727 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3672693 and 3672702.

It is not an unprimeable number, because it can be changed into a prime (3672727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67987 + ... + 68040.

It is an arithmetic number, because the mean of its divisors is an integer number (680140).

Almost surely, 2^3672729 is an apocalyptic number.

It is an amenable number.

3672729 is a deficient number, since it is larger than the sum of its proper divisors (1768391).

3672729 is a wasteful number, since it uses less digits than its factorization.

3672729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136036 (or 136030 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 3672729 is about 1916.4365369091. The cubic root of 3672729 is about 154.2871042644.

The spelling of 3672729 in words is "three million, six hundred seventy-two thousand, seven hundred twenty-nine".