3212878 has 4 divisors (see below), whose sum is σ = 4819320. Its totient is φ = 1606438.

The previous prime is 3212863. The next prime is 3212927. The reversal of 3212878 is 8782123.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803218 + ... + 803221.

It is an arithmetic number, because the mean of its divisors is an integer number (1204830).

Almost surely, 2^3212878 is an apocalyptic number.

3212878 is a deficient number, since it is larger than the sum of its proper divisors (1606442).

3212878 is a wasteful number, since it uses less digits than its factorization.

3212878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606441.

The product of its digits is 5376, while the sum is 31.

The square root of 3212878 is about 1792.4502782504. The cubic root of 3212878 is about 147.5586743489.

The spelling of 3212878 in words is "three million, two hundred twelve thousand, eight hundred seventy-eight".