77761368 has 48 divisors (see below), whose sum is σ = 211330080. Its totient is φ = 25831104.

The previous prime is 77761303. The next prime is 77761373. The reversal of 77761368 is 86316777.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 21121 + ... + 24527.

It is an arithmetic number, because the mean of its divisors is an integer number (4402710).

Almost surely, 2^77761368 is an apocalyptic number.

It is an amenable number.

77761368 is an abundant number, since it is smaller than the sum of its proper divisors (133568712).

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

77761368 is a wasteful number, since it uses less digits than its factorization.

77761368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736 (or 3729 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 77761368 is about 8818.2406408535. The cubic root of 77761368 is about 426.8296995231.

The spelling of 77761368 in words is "seventy-seven million, seven hundred sixty-one thousand, three hundred sixty-eight".