77344317 has 6 divisors (see below), whose sum is σ = 111719582. Its totient is φ = 51562872.

The previous prime is 77344313. The next prime is 77344361. The reversal of 77344317 is 71344377.

It can be written as a sum of positive squares in only one way, i.e., 44235801 + 33108516 = 6651^2 + 5754^2 .

It is not a de Polignac number, because 77344317 - 2² = 77344313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77344313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4296898 + ... + 4296915.

Almost surely, 2^77344317 is an apocalyptic number.

It is an amenable number.

77344317 is a deficient number, since it is larger than the sum of its proper divisors (34375265).

77344317 is a wasteful number, since it uses less digits than its factorization.

77344317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593819 (or 8593816 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 77344317 is about 8794.5617855582. The cubic root of 77344317 is about 426.0652713582.

The spelling of 77344317 in words is "seventy-seven million, three hundred forty-four thousand, three hundred seventeen".