772833638 has 8 divisors (see below), whose sum is σ = 1159767288. Its totient is φ = 386244544.

The previous prime is 772833631. The next prime is 772833661. The reversal of 772833638 is 836338277.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 772833592 and 772833601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772833631) 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 3 ways as a sum of consecutive naturals, for example, 80456 + ... + 89547.

It is an arithmetic number, because the mean of its divisors is an integer number (144970911).

Almost surely, 2^772833638 is an apocalyptic number.

772833638 is a deficient number, since it is larger than the sum of its proper divisors (386933650).

772833638 is a wasteful number, since it uses less digits than its factorization.

772833638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172278.

The product of its digits is 1016064, while the sum is 47.

The square root of 772833638 is about 27799.8855753041. The cubic root of 772833638 is about 917.6886046451.

The spelling of 772833638 in words is "seven hundred seventy-two million, eight hundred thirty-three thousand, six hundred thirty-eight".