77246568 has 128 divisors (see below), whose sum is σ = 250675200. Its totient is φ = 21580992.

The previous prime is 77246567. The next prime is 77246579. The reversal of 77246568 is 86564277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77246567) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 70521 + ... + 71607.

It is an arithmetic number, because the mean of its divisors is an integer number (1958400).

Almost surely, 2^77246568 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 77246568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125337600).

77246568 is an abundant number, since it is smaller than the sum of its proper divisors (173428632).

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

77246568 is a wasteful number, since it uses less digits than its factorization.

77246568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1146 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 77246568 is about 8789.0026737964. The cubic root of 77246568 is about 425.8857062953.

The spelling of 77246568 in words is "seventy-seven million, two hundred forty-six thousand, five hundred sixty-eight".