783228 has 12 divisors (see below), whose sum is σ = 1827560. Its totient is φ = 261072.

The previous prime is 783227. The next prime is 783247. The reversal of 783228 is 822387.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×783228² = 1226892199968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 783195 and 783204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (783227) 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, 32623 + ... + 32646.

783228 is a Friedman number, since it can be written as 3+(887-2)^2, using all its digits and the basic arithmetic operations.

2⁷⁸³²²⁸ is an apocalyptic number.

It is an amenable number.

783228 is an abundant number, since it is smaller than the sum of its proper divisors (1044332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

783228 is a wasteful number, since it uses less digits than its factorization.

783228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65276 (or 65274 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 783228 is about 885.0016949136. The cubic root of 783228 is about 92.1784501123.

The spelling of 783228 in words is "seven hundred eighty-three thousand, two hundred twenty-eight".