775133328 has 20 divisors (see below), whose sum is σ = 2002427888. Its totient is φ = 258377760.

The previous prime is 775133311. The next prime is 775133347. The reversal of 775133328 is 823331577.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8074258 + ... + 8074353.

Almost surely, 2^775133328 is an apocalyptic number.

It is an amenable number.

775133328 is an abundant number, since it is smaller than the sum of its proper divisors (1227294560).

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

775133328 is a wasteful number, since it uses less digits than its factorization.

775133328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16148622 (or 16148616 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 775133328 is about 27841.2163527386. The cubic root of 775133328 is about 918.5979463113.

The spelling of 775133328 in words is "seven hundred seventy-five million, one hundred thirty-three thousand, three hundred twenty-eight".