3933729 has 12 divisors (see below), whose sum is σ = 5836116. Its totient is φ = 2551392.

The previous prime is 3933599. The next prime is 3933731. The reversal of 3933729 is 9273393.

It can be written as a sum of positive squares in 2 ways, for example, as 2634129 + 1299600 = 1623^2 + 1140^2 .

It is not a de Polignac number, because 3933729 - 2¹² = 3929633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3933693 and 3933702.

It is not an unprimeable number, because it can be changed into a prime (3933929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5574 + ... + 6239.

It is an arithmetic number, because the mean of its divisors is an integer number (486343).

Almost surely, 2^3933729 is an apocalyptic number.

It is an amenable number.

3933729 is a deficient number, since it is larger than the sum of its proper divisors (1902387).

3933729 is a wasteful number, since it uses less digits than its factorization.

3933729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11856 (or 11853 counting only the distinct ones).

The product of its digits is 30618, while the sum is 36.

The square root of 3933729 is about 1983.3630529986. The cubic root of 3933729 is about 157.8585632747.

The spelling of 3933729 in words is "three million, nine hundred thirty-three thousand, seven hundred twenty-nine".