3965378 has 8 divisors (see below), whose sum is σ = 5979468. Its totient is φ = 1972224.

The previous prime is 3965371. The next prime is 3965383. The reversal of 3965378 is 8735693.

It can be written as a sum of positive squares in 2 ways, for example, as 3659569 + 305809 = 1913^2 + 553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3965371) 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, 4751 + ... + 5522.

Almost surely, 2^3965378 is an apocalyptic number.

3965378 is a deficient number, since it is larger than the sum of its proper divisors (2014090).

3965378 is a wasteful number, since it uses less digits than its factorization.

3965378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10468.

The product of its digits is 136080, while the sum is 41.

The square root of 3965378 is about 1991.3256890825. The cubic root of 3965378 is about 158.2807857635.

The spelling of 3965378 in words is "three million, nine hundred sixty-five thousand, three hundred seventy-eight".