772819996 has 24 divisors (see below), whose sum is σ = 1481160240. Its totient is φ = 350639232.

The previous prime is 772819981. The next prime is 772819997. The reversal of 772819996 is 699918277.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 772819996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772819997) 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 in 7 ways as a sum of consecutive naturals, for example, 122881 + ... + 129016.

It is an arithmetic number, because the mean of its divisors is an integer number (61715010).

Almost surely, 2^772819996 is an apocalyptic number.

It is an amenable number.

772819996 is a deficient number, since it is larger than the sum of its proper divisors (708340244).

772819996 is a wasteful number, since it uses less digits than its factorization.

772819996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251973 (or 251971 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 58.

The square root of 772819996 is about 27799.6402134992. The cubic root of 772819996 is about 917.6832049571.

The spelling of 772819996 in words is "seven hundred seventy-two million, eight hundred nineteen thousand, nine hundred ninety-six".