9777917347 has 16 divisors (see below), whose sum is σ = 10884062304. Its totient is φ = 8709120000.

The previous prime is 9777917323. The next prime is 9777917377. The reversal of 9777917347 is 7437197779.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9777917347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9777917377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144097 + ... + 200797.

It is an arithmetic number, because the mean of its divisors is an integer number (680253894).

Almost surely, 2^9777917347 is an apocalyptic number.

9777917347 is a deficient number, since it is larger than the sum of its proper divisors (1106144957).

9777917347 is a wasteful number, since it uses less digits than its factorization.

9777917347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57030.

The product of its digits is 16336404, while the sum is 61.

The square root of 9777917347 is about 98883.3522237186. The cubic root of 9777917347 is about 2138.3663943368.

The spelling of 9777917347 in words is "nine billion, seven hundred seventy-seven million, nine hundred seventeen thousand, three hundred forty-seven".