1994082047 has 2 divisors, whose sum is σ = 1994082048. Its totient is φ = 1994082046.

The previous prime is 1994082029. The next prime is 1994082071. The reversal of 1994082047 is 7402804991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1994082047 - 2²⁶ = 1926973183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1994081989 and 1994082007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1994082007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997041023 + 997041024.

It is an arithmetic number, because the mean of its divisors is an integer number (997041024).

Almost surely, 2^1994082047 is an apocalyptic number.

1994082047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994082047 is an equidigital number, since it uses as much as digits as its factorization.

1994082047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1994082047 is about 44655.1458065025. The cubic root of 1994082047 is about 1258.6771299174.

The spelling of 1994082047 in words is "one billion, nine hundred ninety-four million, eighty-two thousand, forty-seven".