1994583379 has 4 divisors (see below), whose sum is σ = 1996299576. Its totient is φ = 1992867184.

The previous prime is 1994583347. The next prime is 1994583403. The reversal of 1994583379 is 9733854991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9733854991 = 7 ⋅1390550713.

It is a cyclic number.

It is not a de Polignac number, because 1994583379 - 2⁵ = 1994583347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1994583329) 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 3 ways as a sum of consecutive naturals, for example, 856354 + ... + 858679.

It is an arithmetic number, because the mean of its divisors is an integer number (499074894).

Almost surely, 2^1994583379 is an apocalyptic number.

1994583379 is a deficient number, since it is larger than the sum of its proper divisors (1716197).

1994583379 is a wasteful number, since it uses less digits than its factorization.

1994583379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716196.

The product of its digits is 7348320, while the sum is 58.

The square root of 1994583379 is about 44660.7588269613. The cubic root of 1994583379 is about 1258.7826023828.

The spelling of 1994583379 in words is "one billion, nine hundred ninety-four million, five hundred eighty-three thousand, three hundred seventy-nine".