775408948 has 6 divisors (see below), whose sum is σ = 1356965666. Its totient is φ = 387704472.

The previous prime is 775408939. The next prime is 775408957. The reversal of 775408948 is 849804577.

It is an interprime number because it is at equal distance from previous prime (775408939) and next prime (775408957).

It can be written as a sum of positive squares in only one way, i.e., 769396644 + 6012304 = 27738^2 + 2452^2 .

It is a junction number, because it is equal to n+sod(n) for n = 775408895 and 775408904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96926115 + ... + 96926122.

Almost surely, 2^775408948 is an apocalyptic number.

It is an amenable number.

775408948 is a deficient number, since it is larger than the sum of its proper divisors (581556718).

775408948 is a wasteful number, since it uses less digits than its factorization.

775408948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193852241 (or 193852239 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 775408948 is about 27846.1657683782. The cubic root of 775408948 is about 918.7068110076.

The spelling of 775408948 in words is "seven hundred seventy-five million, four hundred eight thousand, nine hundred forty-eight".