993464939 has 4 divisors (see below), whose sum is σ = 993574224. Its totient is φ = 993355656.

The previous prime is 993464929. The next prime is 993464947. The reversal of 993464939 is 939464399.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-993464939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993464909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39632 + ... + 59645.

It is an arithmetic number, because the mean of its divisors is an integer number (248393556).

Almost surely, 2^993464939 is an apocalyptic number.

993464939 is a deficient number, since it is larger than the sum of its proper divisors (109285).

993464939 is a wasteful number, since it uses less digits than its factorization.

993464939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109284.

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

The square root of 993464939 is about 31519.2788464457. The cubic root of 993464939 is about 997.8168838053.

The spelling of 993464939 in words is "nine hundred ninety-three million, four hundred sixty-four thousand, nine hundred thirty-nine".