993473946 has 24 divisors (see below), whose sum is σ = 2153114964. Its totient is φ = 331067520.

The previous prime is 993473933. The next prime is 993473947. The reversal of 993473946 is 649374399.

It can be written as a sum of positive squares in 2 ways, for example, as 835845921 + 157628025 = 28911^2 + 12555^2 .

It is a junction number, because it is equal to n+sod(n) for n = 993473892 and 993473901.

It is not an unprimeable number, because it can be changed into a prime (993473947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108216 + ... + 117036.

Almost surely, 2^993473946 is an apocalyptic number.

993473946 is an abundant number, since it is smaller than the sum of its proper divisors (1159641018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

993473946 is a wasteful number, since it uses less digits than its factorization.

993473946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15086 (or 15083 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 54.

The square root of 993473946 is about 31519.4217269289. The cubic root of 993473946 is about 997.8198992814.

The spelling of 993473946 in words is "nine hundred ninety-three million, four hundred seventy-three thousand, nine hundred forty-six".