993053649 has 24 divisors (see below), whose sum is σ = 1543217088. Its totient is φ = 566364960.

The previous prime is 993053609. The next prime is 993053687. The reversal of 993053649 is 946350399.

It is a happy number.

It is not a de Polignac number, because 993053649 - 2⁸ = 993053393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 993053598 and 993053607.

It is not an unprimeable number, because it can be changed into a prime (993053609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73284 + ... + 85770.

It is an arithmetic number, because the mean of its divisors is an integer number (64300712).

Almost surely, 2^993053649 is an apocalyptic number.

It is an amenable number.

993053649 is a deficient number, since it is larger than the sum of its proper divisors (550163439).

993053649 is a wasteful number, since it uses less digits than its factorization.

993053649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045 (or 13038 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 48.

The square root of 993053649 is about 31512.7537514575. The cubic root of 993053649 is about 997.6791675704.

The spelling of 993053649 in words is "nine hundred ninety-three million, fifty-three thousand, six hundred forty-nine".