3222778 has 8 divisors (see below), whose sum is σ = 5206068. Its totient is φ = 1487424.

The previous prime is 3222773. The next prime is 3222781. The reversal of 3222778 is 8772223.

It can be written as a sum of positive squares in 2 ways, for example, as 3122289 + 100489 = 1767^2 + 317^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3222773) 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, 61951 + ... + 62002.

Almost surely, 2^3222778 is an apocalyptic number.

3222778 is a deficient number, since it is larger than the sum of its proper divisors (1983290).

3222778 is a wasteful number, since it uses less digits than its factorization.

3222778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123968.

The product of its digits is 9408, while the sum is 31.

The square root of 3222778 is about 1795.2097370502. The cubic root of 3222778 is about 147.7100788940.

The spelling of 3222778 in words is "three million, two hundred twenty-two thousand, seven hundred seventy-eight".