77194944 has 70 divisors (see below), whose sum is σ = 228845364. Its totient is φ = 25729920.

The previous prime is 77194939. The next prime is 77194973. The reversal of 77194944 is 44949177.

It is a self number, because there is not a number n which added to its sum of digits gives 77194944.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2262 + ... + 12629.

Almost surely, 2^77194944 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 77194944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114422682).

77194944 is an abundant number, since it is smaller than the sum of its proper divisors (151650420).

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

77194944 is a wasteful number, since it uses less digits than its factorization.

77194944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14915 (or 14896 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 77194944 is about 8786.0653309658. The cubic root of 77194944 is about 425.7908117956.

The spelling of 77194944 in words is "seventy-seven million, one hundred ninety-four thousand, nine hundred forty-four".