77875950 has 48 divisors (see below), whose sum is σ = 194313456. Its totient is φ = 20640000.

The previous prime is 77875943. The next prime is 77875981. The reversal of 77875950 is 5957877.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 77875950.

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 23 ways as a sum of consecutive naturals, for example, 24450 + ... + 27450.

It is an arithmetic number, because the mean of its divisors is an integer number (4048197).

Almost surely, 2^77875950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77875950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97156728).

77875950 is an abundant number, since it is smaller than the sum of its proper divisors (116437506).

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

77875950 is a wasteful number, since it uses less digits than its factorization.

77875950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189 (or 3184 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 48.

The square root of 77875950 is about 8824.7351235037. The cubic root of 77875950 is about 427.0392422987.

The spelling of 77875950 in words is "seventy-seven million, eight hundred seventy-five thousand, nine hundred fifty".