77276332 has 72 divisors (see below), whose sum is σ = 164956176. Its totient is φ = 31554432.

The previous prime is 77276291. The next prime is 77276333. The reversal of 77276332 is 23367277.

It is a junction number, because it is equal to n+sod(n) for n = 77276291 and 77276300.

It is not an unprimeable number, because it can be changed into a prime (77276333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 446598 + ... + 446770.

It is an arithmetic number, because the mean of its divisors is an integer number (2291058).

Almost surely, 2^77276332 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 77276332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82478088).

77276332 is an abundant number, since it is smaller than the sum of its proper divisors (87679844).

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

77276332 is a wasteful number, since it uses less digits than its factorization.

77276332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 278 counting only the distinct ones).

The product of its digits is 74088, while the sum is 37.

The square root of 77276332 is about 8790.6957631350. The cubic root of 77276332 is about 425.9403988413.

The spelling of 77276332 in words is "seventy-seven million, two hundred seventy-six thousand, three hundred thirty-two".