77376992 has 96 divisors (see below), whose sum is σ = 196245504. Its totient is φ = 29145600.

The previous prime is 77376989. The next prime is 77377021. The reversal of 77376992 is 29967377.

It is a self number, because there is not a number n which added to its sum of digits gives 77376992.

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 15 ways as a sum of consecutive naturals, for example, 75878 + ... + 76890.

It is an arithmetic number, because the mean of its divisors is an integer number (2044224).

Almost surely, 2^77376992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77376992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98122752).

77376992 is an abundant number, since it is smaller than the sum of its proper divisors (118868512).

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

77376992 is a wasteful number, since it uses less digits than its factorization.

77376992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1064 counting only the distinct ones).

The product of its digits is 1000188, while the sum is 50.

The square root of 77376992 is about 8796.4192714991. The cubic root of 77376992 is about 426.1252616427.

The spelling of 77376992 in words is "seventy-seven million, three hundred seventy-six thousand, nine hundred ninety-two".