775987672 has 16 divisors (see below), whose sum is σ = 1485934560. Its totient is φ = 379738464.

The previous prime is 775987637. The next prime is 775987697. The reversal of 775987672 is 276789577.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031523 + ... + 1032274.

It is an arithmetic number, because the mean of its divisors is an integer number (92870910).

Almost surely, 2^775987672 is an apocalyptic number.

It is an amenable number.

775987672 is a deficient number, since it is larger than the sum of its proper divisors (709946888).

775987672 is a wasteful number, since it uses less digits than its factorization.

775987672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063850 (or 2063846 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 58.

The square root of 775987672 is about 27856.5552787849. Note that the first 3 decimals coincide. The cubic root of 775987672 is about 918.9353121379.

The spelling of 775987672 in words is "seven hundred seventy-five million, nine hundred eighty-seven thousand, six hundred seventy-two".