9994200839 has 16 divisors (see below), whose sum is σ = 12105105408. Its totient is φ = 8055027072.

The previous prime is 9994200823. The next prime is 9994200863. The reversal of 9994200839 is 9380024999.

It is a cyclic number.

It is not a de Polignac number, because 9994200839 - 2⁴ = 9994200823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9994200889) 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, 90722 + ... + 167984.

It is an arithmetic number, because the mean of its divisors is an integer number (756569088).

Almost surely, 2^9994200839 is an apocalyptic number.

9994200839 is a deficient number, since it is larger than the sum of its proper divisors (2110904569).

9994200839 is a wasteful number, since it uses less digits than its factorization.

9994200839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78374.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 9994200839 is about 99970.9999899971. Note that the first 4 decimals coincide. The cubic root of 9994200839 is about 2154.0181457135.

The spelling of 9994200839 in words is "nine billion, nine hundred ninety-four million, two hundred thousand, eight hundred thirty-nine".