1994828167 has 4 divisors (see below), whose sum is σ = 1996628040. Its totient is φ = 1993028296.

The previous prime is 1994828159. The next prime is 1994828197. The reversal of 1994828167 is 7618284991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7618284991 = 167 ⋅45618473.

It is a cyclic number.

It is not a de Polignac number, because 1994828167 - 2³ = 1994828159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994828117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898273 + ... + 900490.

It is an arithmetic number, because the mean of its divisors is an integer number (499157010).

Almost surely, 2^1994828167 is an apocalyptic number.

1994828167 is a deficient number, since it is larger than the sum of its proper divisors (1799873).

1994828167 is a wasteful number, since it uses less digits than its factorization.

1994828167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799872.

The product of its digits is 1741824, while the sum is 55.

The square root of 1994828167 is about 44663.4992695378. The cubic root of 1994828167 is about 1258.8340955542.

The spelling of 1994828167 in words is "one billion, nine hundred ninety-four million, eight hundred twenty-eight thousand, one hundred sixty-seven".