785223828 has 24 divisors (see below), whose sum is σ = 2035765760. Its totient is φ = 261741240.

The previous prime is 785223797. The next prime is 785223839. The reversal of 785223828 is 828322587.

785223828 is a `hidden beast` number, since 78 + 522 + 38 + 28 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3635188 + ... + 3635403.

Almost surely, 2^785223828 is an apocalyptic number.

It is an amenable number.

785223828 is an abundant number, since it is smaller than the sum of its proper divisors (1250541932).

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

785223828 is a wasteful number, since it uses less digits than its factorization.

785223828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270604 (or 7270596 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 785223828 is about 28021.8455494994. The cubic root of 785223828 is about 922.5668032792.

The spelling of 785223828 in words is "seven hundred eighty-five million, two hundred twenty-three thousand, eight hundred twenty-eight".