9994239 has 16 divisors (see below), whose sum is σ = 14918400. Its totient is φ = 6612408.

The previous prime is 9994223. The next prime is 9994261. The reversal of 9994239 is 9324999.

It is not a de Polignac number, because 9994239 - 2⁴ = 9994223 is a prime.

9994239 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9994194 and 9994203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9994219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2422 + ... + 5084.

It is an arithmetic number, because the mean of its divisors is an integer number (932400).

Almost surely, 2^9994239 is an apocalyptic number.

9994239 is a deficient number, since it is larger than the sum of its proper divisors (4924161).

9994239 is a wasteful number, since it uses less digits than its factorization.

9994239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811 (or 2805 counting only the distinct ones).

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

The square root of 9994239 is about 3161.3666348590. The cubic root of 9994239 is about 215.4020887283.

The spelling of 9994239 in words is "nine million, nine hundred ninety-four thousand, two hundred thirty-nine".