3968545 has 16 divisors (see below), whose sum is σ = 5522688. Its totient is φ = 2681280.

The previous prime is 3968543. The next prime is 3968551. The reversal of 3968545 is 5458693.

It is not a de Polignac number, because 3968545 - 2¹ = 3968543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3968498 and 3968507.

It is not an unprimeable number, because it can be changed into a prime (3968543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1687 + ... + 3283.

It is an arithmetic number, because the mean of its divisors is an integer number (345168).

Almost surely, 2^3968545 is an apocalyptic number.

3968545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3968545 is a deficient number, since it is larger than the sum of its proper divisors (1554143).

3968545 is a wasteful number, since it uses less digits than its factorization.

3968545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680.

The product of its digits is 129600, while the sum is 40.

The square root of 3968545 is about 1992.1207292732. The cubic root of 3968545 is about 158.3229122104.

The spelling of 3968545 in words is "three million, nine hundred sixty-eight thousand, five hundred forty-five".