3521378 has 8 divisors (see below), whose sum is σ = 6036672. Its totient is φ = 1509156.

The previous prime is 3521377. The next prime is 3521389. The reversal of 3521378 is 8731253.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3521378.

It is not an unprimeable number, because it can be changed into a prime (3521377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125750 + ... + 125777.

It is an arithmetic number, because the mean of its divisors is an integer number (754584).

Almost surely, 2^3521378 is an apocalyptic number.

3521378 is a deficient number, since it is larger than the sum of its proper divisors (2515294).

3521378 is a wasteful number, since it uses less digits than its factorization.

3521378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251536.

The product of its digits is 5040, while the sum is 29.

The square root of 3521378 is about 1876.5335062290. The cubic root of 3521378 is about 152.1379461001.

The spelling of 3521378 in words is "three million, five hundred twenty-one thousand, three hundred seventy-eight".