77424368 has 20 divisors (see below), whose sum is σ = 171439920. Its totient is φ = 33181824.

The previous prime is 77424367. The next prime is 77424419. The reversal of 77424368 is 86342477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77424367) 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, 345533 + ... + 345756.

It is an arithmetic number, because the mean of its divisors is an integer number (8571996).

Almost surely, 2^77424368 is an apocalyptic number.

It is an amenable number.

77424368 is an abundant number, since it is smaller than the sum of its proper divisors (94015552).

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

77424368 is a wasteful number, since it uses less digits than its factorization.

77424368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691304 (or 691298 counting only the distinct ones).

The product of its digits is 225792, while the sum is 41.

The square root of 77424368 is about 8799.1117733553. Note that the first 3 decimals coincide. The cubic root of 77424368 is about 426.2122125181.

The spelling of 77424368 in words is "seventy-seven million, four hundred twenty-four thousand, three hundred sixty-eight".