993053647 has 8 divisors (see below), whose sum is σ = 1015612416. Its totient is φ = 970554552.

The previous prime is 993053609. The next prime is 993053687. The reversal of 993053647 is 746350399.

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 993053647 - 2¹⁹ = 992529359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 993053597 and 993053606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993053687) 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, 19638 + ... + 48700.

It is an arithmetic number, because the mean of its divisors is an integer number (126951552).

Almost surely, 2^993053647 is an apocalyptic number.

993053647 is a deficient number, since it is larger than the sum of its proper divisors (22558769).

993053647 is a wasteful number, since it uses less digits than its factorization.

993053647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29837.

The product of its (nonzero) digits is 612360, while the sum is 46.

The square root of 993053647 is about 31512.7537197243. The cubic root of 993053647 is about 997.6791669006.

The spelling of 993053647 in words is "nine hundred ninety-three million, fifty-three thousand, six hundred forty-seven".