772288626 has 8 divisors (see below), whose sum is σ = 1544577264. Its totient is φ = 257429540.

The previous prime is 772288607. The next prime is 772288637. The reversal of 772288626 is 626882277.

It is a happy number.

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

772288626 is an admirable number.

It is an unprimeable number.

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, 64357380 + ... + 64357391.

It is an arithmetic number, because the mean of its divisors is an integer number (193072158).

Almost surely, 2^772288626 is an apocalyptic number.

772288626 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

772288626 is a wasteful number, since it uses less digits than its factorization.

772288626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128714776.

The product of its digits is 903168, while the sum is 48.

The square root of 772288626 is about 27790.0814320505. The cubic root of 772288626 is about 917.4728320673.

The spelling of 772288626 in words is "seven hundred seventy-two million, two hundred eighty-eight thousand, six hundred twenty-six".