8994139 has 16 divisors (see below), whose sum is σ = 11874816. Its totient is φ = 6595200.

The previous prime is 8994133. The next prime is 8994157. The reversal of 8994139 is 9314998.

It is a cyclic number.

It is not a de Polignac number, because 8994139 - 2¹¹ = 8992091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8994095 and 8994104.

It is not an unprimeable number, because it can be changed into a prime (8994133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2127 + ... + 4744.

It is an arithmetic number, because the mean of its divisors is an integer number (742176).

Almost surely, 2^8994139 is an apocalyptic number.

8994139 is a deficient number, since it is larger than the sum of its proper divisors (2880677).

8994139 is a wasteful number, since it uses less digits than its factorization.

8994139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906.

The product of its digits is 69984, while the sum is 43.

The square root of 8994139 is about 2999.0230075810. The cubic root of 8994139 is about 207.9632192731.

It can be divided in two parts, 89 and 94139, that multiplied together give a triangular number (8378371 = T₄₀₉₃).

The spelling of 8994139 in words is "eight million, nine hundred ninety-four thousand, one hundred thirty-nine".