1993892485 has 8 divisors (see below), whose sum is σ = 2576722680. Its totient is φ = 1472412864.

The previous prime is 1993892479. The next prime is 1993892497. The reversal of 1993892485 is 5842983991.

It can be written as a sum of positive squares in 4 ways, for example, as 451052644 + 1542839841 = 21238^2 + 39279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1993892485 - 2⁹ = 1993891973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15337570 + ... + 15337699.

It is an arithmetic number, because the mean of its divisors is an integer number (322090335).

Almost surely, 2^1993892485 is an apocalyptic number.

It is an amenable number.

1993892485 is a deficient number, since it is larger than the sum of its proper divisors (582830195).

1993892485 is a wasteful number, since it uses less digits than its factorization.

1993892485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30675287.

The product of its digits is 5598720, while the sum is 58.

The square root of 1993892485 is about 44653.0232459125. The cubic root of 1993892485 is about 1258.6372444113.

The spelling of 1993892485 in words is "one billion, nine hundred ninety-three million, eight hundred ninety-two thousand, four hundred eighty-five".