3929545 has 8 divisors (see below), whose sum is σ = 4737096. Its totient is φ = 3129216.

The previous prime is 3929543. The next prime is 3929551. The reversal of 3929545 is 5459293.

It can be written as a sum of positive squares in 4 ways, for example, as 915849 + 3013696 = 957^2 + 1736^2 .

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 3929545 - 2¹ = 3929543 is a prime.

It is a Duffinian number.

3929545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3929543) 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, 522 + ... + 2851.

It is an arithmetic number, because the mean of its divisors is an integer number (592137).

Almost surely, 2^3929545 is an apocalyptic number.

It is an amenable number.

3929545 is a deficient number, since it is larger than the sum of its proper divisors (807551).

3929545 is a wasteful number, since it uses less digits than its factorization.

3929545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611.

The product of its digits is 48600, while the sum is 37.

The square root of 3929545 is about 1982.3079982687. The cubic root of 3929545 is about 157.8025761495.

It can be divided in two parts, 39295 and 45, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 3929545 in words is "three million, nine hundred twenty-nine thousand, five hundred forty-five".