993888676 has 27 divisors (see below), whose sum is σ = 1913133313.
Its totient is φ = 451452320.
The previous prime is 993888671. The next prime is 993888683. The reversal of 993888676 is 676888399.
The square root of 993888676 is 31526.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 824264100 + 169624576 = 28710^2 + 13024^2
It is a super-3 number, since 3×9938886763 (a number of 28 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (993888671) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 692856 + ... + 694288.
Almost surely, 2993888676 is an apocalyptic number.
993888676 is the 31526-th square number.
It is an amenable number.
993888676 is a deficient number, since it is larger than the sum of its proper divisors (919244637).
993888676 is a wasteful number, since it uses less digits than its factorization.
993888676 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2892 (or 1446 counting only the distinct ones).
The product of its digits is 31352832, while the sum is 64.
The cubic root of 993888676 is about 997.9587280440.
Multiplying 993888676 by its sum of digits (64), we get a square (63608875264 = 2522082).
The spelling of 993888676 in words is "nine hundred ninety-three million, eight hundred eighty-eight thousand, six hundred seventy-six".