3929245 has 8 divisors (see below), whose sum is σ = 4733784. Its totient is φ = 3130944.

The previous prime is 3929221. The next prime is 3929249. The reversal of 3929245 is 5429293.

It can be written as a sum of positive squares in 4 ways, for example, as 95481 + 3833764 = 309^2 + 1958^2 .

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 3929245 - 2⁵ = 3929213 is a prime.

It is a Duffinian number.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 3929245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3929249) 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, 34 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (591723).

Almost surely, 2^3929245 is an apocalyptic number.

It is an amenable number.

3929245 is a deficient number, since it is larger than the sum of its proper divisors (804539).

3929245 is a wasteful number, since it uses less digits than its factorization.

3929245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119.

The product of its digits is 19440, while the sum is 34.

The square root of 3929245 is about 1982.2323274531. The cubic root of 3929245 is about 157.7985602496.

It can be divided in two parts, 39292 and 45, that multiplied together give a triangular number (1768140 = T₁₈₈₀).

The spelling of 3929245 in words is "three million, nine hundred twenty-nine thousand, two hundred forty-five".