77873852 has 12 divisors (see below), whose sum is σ = 155747760. Its totient is φ = 33374496.

The previous prime is 77873849. The next prime is 77873857. The reversal of 77873852 is 25837877.

It is a happy number.

77873852 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 77873797 and 77873806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77873857) 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, 1390577 + ... + 1390632.

It is an arithmetic number, because the mean of its divisors is an integer number (12978980).

Almost surely, 2^77873852 is an apocalyptic number.

It is an amenable number.

77873852 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.

77873852 is a wasteful number, since it uses less digits than its factorization.

77873852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781220 (or 2781218 counting only the distinct ones).

The product of its digits is 658560, while the sum is 47.

The square root of 77873852 is about 8824.6162522798. The cubic root of 77873852 is about 427.0354074118.

The spelling of 77873852 in words is "seventy-seven million, eight hundred seventy-three thousand, eight hundred fifty-two".