77897358 has 192 divisors, whose sum is σ = 227635200. Its totient is φ = 19051200.

The previous prime is 77897357. The next prime is 77897363. The reversal of 77897358 is 85379877.

Its product of digits (2963520) is a multiple of the sum of its prime factors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77897353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2105316 + ... + 2105352.

It is an arithmetic number, because the mean of its divisors is an integer number (1185600).

Almost surely, 2^77897358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77897358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113817600).

77897358 is an abundant number, since it is smaller than the sum of its proper divisors (149737842).

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

77897358 is a wasteful number, since it uses less digits than its factorization.

77897358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 91 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 54.

The square root of 77897358 is about 8825.9479944083. The cubic root of 77897358 is about 427.0783695625.

The spelling of 77897358 in words is "seventy-seven million, eight hundred ninety-seven thousand, three hundred fifty-eight".