993797997 has 8 divisors (see below), whose sum is σ = 1325254656. Its totient is φ = 662436672.

The previous prime is 993797971. The next prime is 993797999. The reversal of 993797997 is 799797399.

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

It is not a de Polignac number, because 993797997 - 2⁶ = 993797933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993797999) 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, 5733 + ... + 44949.

It is an arithmetic number, because the mean of its divisors is an integer number (165656832).

Almost surely, 2^993797997 is an apocalyptic number.

It is an amenable number.

993797997 is a deficient number, since it is larger than the sum of its proper divisors (331456659).

993797997 is a wasteful number, since it uses less digits than its factorization.

993797997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47667.

The product of its digits is 60761421, while the sum is 69.

The square root of 993797997 is about 31524.5618050434. The cubic root of 993797997 is about 997.9283770084.

The spelling of 993797997 in words is "nine hundred ninety-three million, seven hundred ninety-seven thousand, nine hundred ninety-seven".