9698878977 has 4 divisors (see below), whose sum is σ = 12931838640. Its totient is φ = 6465919316.

The previous prime is 9698878967. The next prime is 9698878979. The reversal of 9698878977 is 7798788969.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9698878977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9698878979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616479827 + ... + 1616479832.

It is an arithmetic number, because the mean of its divisors is an integer number (3232959660).

Almost surely, 2^9698878977 is an apocalyptic number.

It is an amenable number.

9698878977 is a deficient number, since it is larger than the sum of its proper divisors (3232959663).

9698878977 is a wasteful number, since it uses less digits than its factorization.

9698878977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232959662.

The product of its digits is 768144384, while the sum is 78.

The square root of 9698878977 is about 98482.8867215010. The cubic root of 9698878977 is about 2132.5890751756.

The spelling of 9698878977 in words is "nine billion, six hundred ninety-eight million, eight hundred seventy-eight thousand, nine hundred seventy-seven".