993478414 has 4 divisors (see below), whose sum is σ = 1490217624. Its totient is φ = 496739206.

The previous prime is 993478361. The next prime is 993478417. The reversal of 993478414 is 414874399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 414874399 = 17891 ⋅23189.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993478417) 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 as a sum of consecutive naturals, namely, 248369602 + ... + 248369605.

It is an arithmetic number, because the mean of its divisors is an integer number (372554406).

Almost surely, 2^993478414 is an apocalyptic number.

993478414 is a deficient number, since it is larger than the sum of its proper divisors (496739210).

993478414 is a wasteful number, since it uses less digits than its factorization.

993478414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496739209.

The product of its digits is 870912, while the sum is 49.

The square root of 993478414 is about 31519.4926037841. The cubic root of 993478414 is about 997.8213951276.

The spelling of 993478414 in words is "nine hundred ninety-three million, four hundred seventy-eight thousand, four hundred fourteen".