77068446 has 192 divisors, whose sum is σ = 221211648. Its totient is φ = 17335296.

The previous prime is 77068421. The next prime is 77068451. The reversal of 77068446 is 64486077.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 77068398 and 77068407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3350791 + ... + 3350813.

It is an arithmetic number, because the mean of its divisors is an integer number (1152144).

Almost surely, 2^77068446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77068446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110605824).

77068446 is an abundant number, since it is smaller than the sum of its proper divisors (144143202).

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

77068446 is a wasteful number, since it uses less digits than its factorization.

77068446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 77068446 is about 8778.8635938828. The cubic root of 77068446 is about 425.5581059953.

The spelling of 77068446 in words is "seventy-seven million, sixty-eight thousand, four hundred forty-six".