993464399 has 4 divisors (see below), whose sum is σ = 1017695280. Its totient is φ = 969233520.

The previous prime is 993464371. The next prime is 993464413.

993464399 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-993464399 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 (993466399) 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, 12115379 + ... + 12115460.

It is an arithmetic number, because the mean of its divisors is an integer number (254423820).

Almost surely, 2^993464399 is an apocalyptic number.

993464399 is a deficient number, since it is larger than the sum of its proper divisors (24230881).

993464399 is a wasteful number, since it uses less digits than its factorization.

993464399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24230880.

The product of its digits is 5668704, while the sum is 56.

The square root of 993464399 is about 31519.2702802587. The cubic root of 993464399 is about 997.8167030167.

The spelling of 993464399 in words is "nine hundred ninety-three million, four hundred sixty-four thousand, three hundred ninety-nine".