1994086479 has 64 divisors (see below), whose sum is σ = 3390013440. Its totient is φ = 1012677120.

The previous prime is 1994086477. The next prime is 1994086481. The reversal of 1994086479 is 9746804991.

It is an interprime number because it is at equal distance from previous prime (1994086477) and next prime (1994086481).

It is not a de Polignac number, because 1994086479 - 2¹ = 1994086477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994086477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2061654 + ... + 2062620.

It is an arithmetic number, because the mean of its divisors is an integer number (52968960).

Almost surely, 2^1994086479 is an apocalyptic number.

1994086479 is a deficient number, since it is larger than the sum of its proper divisors (1395926961).

1994086479 is a wasteful number, since it uses less digits than its factorization.

1994086479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The square root of 1994086479 is about 44655.1954312149. The cubic root of 1994086479 is about 1258.6780624188.

The spelling of 1994086479 in words is "one billion, nine hundred ninety-four million, eighty-six thousand, four hundred seventy-nine".