994347166 has 4 divisors (see below), whose sum is σ = 1491520752. Its totient is φ = 497173582.

The previous prime is 994347143. The next prime is 994347199. The reversal of 994347166 is 661743499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661743499 = 13163 ⋅50273.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248586790 + ... + 248586793.

It is an arithmetic number, because the mean of its divisors is an integer number (372880188).

Almost surely, 2^994347166 is an apocalyptic number.

994347166 is a deficient number, since it is larger than the sum of its proper divisors (497173586).

994347166 is a wasteful number, since it uses less digits than its factorization.

994347166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497173585.

The product of its digits is 979776, while the sum is 49.

The square root of 994347166 is about 31533.2707786554. The cubic root of 994347166 is about 998.1121603040.

The spelling of 994347166 in words is "nine hundred ninety-four million, three hundred forty-seven thousand, one hundred sixty-six".