775689248 has 12 divisors (see below), whose sum is σ = 1527138270. Its totient is φ = 387844608.

The previous prime is 775689241. The next prime is 775689251. The reversal of 775689248 is 842986577.

It can be written as a sum of positive squares in only one way, i.e., 700555024 + 75134224 = 26468^2 + 8668^2 .

It is a junction number, because it is equal to n+sod(n) for n = 775689193 and 775689202.

It is not an unprimeable number, because it can be changed into a prime (775689241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12120113 + ... + 12120176.

Almost surely, 2^775689248 is an apocalyptic number.

It is an amenable number.

775689248 is a deficient number, since it is larger than the sum of its proper divisors (751449022).

775689248 is a wasteful number, since it uses less digits than its factorization.

775689248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24240299 (or 24240291 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 56.

The square root of 775689248 is about 27851.1983225139. The cubic root of 775689248 is about 918.8174977606.

The spelling of 775689248 in words is "seven hundred seventy-five million, six hundred eighty-nine thousand, two hundred forty-eight".