772989648 has 40 divisors (see below), whose sum is σ = 1998764928. Its totient is φ = 257421312.

The previous prime is 772989631. The next prime is 772989667. The reversal of 772989648 is 846989277.

It is a junction number, because it is equal to n+sod(n) for n = 772989591 and 772989600.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 48361 + ... + 62327.

Almost surely, 2^772989648 is an apocalyptic number.

It is an amenable number.

772989648 is an abundant number, since it is smaller than the sum of its proper divisors (1225775280).

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

772989648 is a wasteful number, since it uses less digits than its factorization.

772989648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15131 (or 15125 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 60.

The square root of 772989648 is about 27802.6913805121. The cubic root of 772989648 is about 917.7503509941.

The spelling of 772989648 in words is "seven hundred seventy-two million, nine hundred eighty-nine thousand, six hundred forty-eight".