993952549 has 8 divisors (see below), whose sum is σ = 1055746008. Its totient is φ = 932528640.

The previous prime is 993952543. The next prime is 993952577. The reversal of 993952549 is 945259399.

It can be written as a sum of positive squares in 4 ways, for example, as 329241025 + 664711524 = 18145^2 + 25782^2 .

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 993952549 - 2¹⁵ = 993919781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 993952549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993952543) 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, 86832 + ... + 97609.

It is an arithmetic number, because the mean of its divisors is an integer number (131968251).

Almost surely, 2^993952549 is an apocalyptic number.

It is an amenable number.

993952549 is a deficient number, since it is larger than the sum of its proper divisors (61793459).

993952549 is a wasteful number, since it uses less digits than its factorization.

993952549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184775.

The product of its digits is 3936600, while the sum is 55.

The square root of 993952549 is about 31527.0130047234. The cubic root of 993952549 is about 997.9801057744.

The spelling of 993952549 in words is "nine hundred ninety-three million, nine hundred fifty-two thousand, five hundred forty-nine".