971798099 has 8 divisors (see below), whose sum is σ = 987747072. Its totient is φ = 955974600.

The previous prime is 971798021. The next prime is 971798117. The reversal of 971798099 is 990897179.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 971798099 - 2¹² = 971794003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971798699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15689 + ... + 46794.

It is an arithmetic number, because the mean of its divisors is an integer number (123468384).

Almost surely, 2^971798099 is an apocalyptic number.

971798099 is a deficient number, since it is larger than the sum of its proper divisors (15948973).

971798099 is a wasteful number, since it uses less digits than its factorization.

971798099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62737.

The product of its (nonzero) digits is 2571912, while the sum is 59.

The square root of 971798099 is about 31173.6763792787. The cubic root of 971798099 is about 990.5095832509.

The spelling of 971798099 in words is "nine hundred seventy-one million, seven hundred ninety-eight thousand, ninety-nine".