3929045 has 4 divisors (see below), whose sum is σ = 4714860. Its totient is φ = 3143232.

The previous prime is 3929027. The next prime is 3929047. The reversal of 3929045 is 5409293.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 3179089 = 866^2 + 1783^2 .

It is a cyclic number.

It is not a de Polignac number, because 3929045 - 2²⁰ = 2880469 is a prime.

It is a super-2 number, since 2×3929045² = 30874789224050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3929047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392900 + ... + 392909.

It is an arithmetic number, because the mean of its divisors is an integer number (1178715).

Almost surely, 2^3929045 is an apocalyptic number.

It is an amenable number.

3929045 is a deficient number, since it is larger than the sum of its proper divisors (785815).

3929045 is an equidigital number, since it uses as much as digits as its factorization.

3929045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785814.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3929045 is about 1982.1818786378. The cubic root of 3929045 is about 157.7958828695.

The spelling of 3929045 in words is "three million, nine hundred twenty-nine thousand, forty-five".