77425120 has 24 divisors (see below), whose sum is σ = 182917224. Its totient is φ = 30969984.

The previous prime is 77425091. The next prime is 77425141. The reversal of 77425120 is 2152477.

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, 241794 + ... + 242113.

It is an arithmetic number, because the mean of its divisors is an integer number (7621551).

Almost surely, 2^77425120 is an apocalyptic number.

It is an amenable number.

77425120 is an abundant number, since it is smaller than the sum of its proper divisors (105492104).

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

77425120 is a wasteful number, since it uses less digits than its factorization.

77425120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483922 (or 483914 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 77425120 is about 8799.1545048374. The cubic root of 77425120 is about 426.2135924047.

Adding to 77425120 its reverse (2152477), we get a palindrome (79577597).

The spelling of 77425120 in words is "seventy-seven million, four hundred twenty-five thousand, one hundred twenty".