1613993473 has 2 divisors, whose sum is σ = 1613993474. Its totient is φ = 1613993472.

The previous prime is 1613993443. The next prime is 1613993483. The reversal of 1613993473 is 3743993161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1214313409 + 399680064 = 34847^2 + 19992^2 .

It is a cyclic number.

It is not a de Polignac number, because 1613993473 - 2¹³ = 1613985281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1613993443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806996736 + 806996737.

It is an arithmetic number, because the mean of its divisors is an integer number (806996737).

Almost surely, 2^1613993473 is an apocalyptic number.

It is an amenable number.

1613993473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613993473 is an equidigital number, since it uses as much as digits as its factorization.

1613993473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 46.

The square root of 1613993473 is about 40174.5376202390. The cubic root of 1613993473 is about 1173.0069664034.

The spelling of 1613993473 in words is "one billion, six hundred thirteen million, nine hundred ninety-three thousand, four hundred seventy-three".