9993492 has 18 divisors (see below), whose sum is σ = 25261418. Its totient is φ = 3331152.

The previous prime is 9993461. The next prime is 9993493. The reversal of 9993492 is 2943999.

It can be written as a sum of positive squares in only one way, i.e., 5171076 + 4822416 = 2274^2 + 2196^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9993493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138763 + ... + 138834.

Almost surely, 2^9993492 is an apocalyptic number.

It is an amenable number.

9993492 is an abundant number, since it is smaller than the sum of its proper divisors (15267926).

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

9993492 is a wasteful number, since it uses less digits than its factorization.

9993492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277607 (or 277602 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 9993492 is about 3161.2484875441. The cubic root of 9993492 is about 215.3967219909.

The spelling of 9993492 in words is "nine million, nine hundred ninety-three thousand, four hundred ninety-two".