3243278 has 4 divisors (see below), whose sum is σ = 4864920. Its totient is φ = 1621638.

The previous prime is 3243271. The next prime is 3243293. The reversal of 3243278 is 8723423.

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

It is a super-3 number, since 3×3243278³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3243278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810818 + ... + 810821.

It is an arithmetic number, because the mean of its divisors is an integer number (1216230).

Almost surely, 2^3243278 is an apocalyptic number.

3243278 is a deficient number, since it is larger than the sum of its proper divisors (1621642).

3243278 is a wasteful number, since it uses less digits than its factorization.

3243278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621641.

The product of its digits is 8064, while the sum is 29.

The square root of 3243278 is about 1800.9103253633. The cubic root of 3243278 is about 148.0226103756.

The spelling of 3243278 in words is "three million, two hundred forty-three thousand, two hundred seventy-eight".