77882380 has 12 divisors (see below), whose sum is σ = 163553040. Its totient is φ = 31152944.

The previous prime is 77882359. The next prime is 77882383. The reversal of 77882380 is 8328877.

It is a super-2 number, since 2×77882380² = 12131330228928800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77882383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1947040 + ... + 1947079.

It is an arithmetic number, because the mean of its divisors is an integer number (13629420).

Almost surely, 2^77882380 is an apocalyptic number.

It is an amenable number.

77882380 is an abundant number, since it is smaller than the sum of its proper divisors (85670660).

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

77882380 is a wasteful number, since it uses less digits than its factorization.

77882380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894128 (or 3894126 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 77882380 is about 8825.0994328676. The cubic root of 77882380 is about 427.0509951217.

The spelling of 77882380 in words is "seventy-seven million, eight hundred eighty-two thousand, three hundred eighty".