772117078 has 8 divisors (see below), whose sum is σ = 1160048520. Its totient is φ = 385434240.

The previous prime is 772117069. The next prime is 772117103. The reversal of 772117078 is 870711277.

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

It is a self number, because there is not a number n which added to its sum of digits gives 772117078.

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 3 ways as a sum of consecutive naturals, for example, 310603 + ... + 313078.

It is an arithmetic number, because the mean of its divisors is an integer number (145006065).

Almost surely, 2^772117078 is an apocalyptic number.

772117078 is a deficient number, since it is larger than the sum of its proper divisors (387931442).

772117078 is a wasteful number, since it uses less digits than its factorization.

772117078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624302.

The product of its (nonzero) digits is 38416, while the sum is 40.

The square root of 772117078 is about 27786.9947637379. The cubic root of 772117078 is about 917.4048944771.

The spelling of 772117078 in words is "seven hundred seventy-two million, one hundred seventeen thousand, seventy-eight".