3745729 has 12 divisors (see below), whose sum is σ = 4289404. Its totient is φ = 3250944.

The previous prime is 3745723. The next prime is 3745739. The reversal of 3745729 is 9275473.

3745729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 330625 + 3415104 = 575^2 + 1848^2 .

It is not a de Polignac number, because 3745729 - 2⁵ = 3745697 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 3¹³ + 7³ + 4⁸ + 5⁹ + 7⁶ + 2¹³ + 9⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3745723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3259 + ... + 4255.

Almost surely, 2^3745729 is an apocalyptic number.

It is an amenable number.

3745729 is a deficient number, since it is larger than the sum of its proper divisors (543675).

3745729 is a wasteful number, since it uses less digits than its factorization.

3745729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1027 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 3745729 is about 1935.3885914720. The cubic root of 3745729 is about 155.3026207133.

The spelling of 3745729 in words is "three million, seven hundred forty-five thousand, seven hundred twenty-nine".