77604352 has 80 divisors (see below), whose sum is σ = 180702720. Its totient is φ = 32606208.

The previous prime is 77604311. The next prime is 77604353. The reversal of 77604352 is 25340677.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77604353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211273 + ... + 211639.

It is an arithmetic number, because the mean of its divisors is an integer number (2258784).

Almost surely, 2^77604352 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 77604352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90351360).

77604352 is an abundant number, since it is smaller than the sum of its proper divisors (103098368).

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

77604352 is an equidigital number, since it uses as much as digits as its factorization.

77604352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 77604352 is about 8809.3332324303. Note that the first 3 decimals coincide. The cubic root of 77604352 is about 426.5422206508.

The spelling of 77604352 in words is "seventy-seven million, six hundred four thousand, three hundred fifty-two".