77273056 has 24 divisors (see below), whose sum is σ = 173864880. Its totient is φ = 33116928.

The previous prime is 77273011. The next prime is 77273059. The reversal of 77273056 is 65037277.

It is a super-2 number, since 2×77273056² = 11942250367158272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77273059) by changing a digit.

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, 172261 + ... + 172708.

It is an arithmetic number, because the mean of its divisors is an integer number (7244370).

Almost surely, 2^77273056 is an apocalyptic number.

It is an amenable number.

77273056 is an abundant number, since it is smaller than the sum of its proper divisors (96591824).

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

77273056 is a wasteful number, since it uses less digits than its factorization.

77273056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344986 (or 344978 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 77273056 is about 8790.5094277863. The cubic root of 77273056 is about 425.9343797475.

The spelling of 77273056 in words is "seventy-seven million, two hundred seventy-three thousand, fifty-six".