3789693857 has 2 divisors, whose sum is σ = 3789693858. Its totient is φ = 3789693856.

The previous prime is 3789693823. The next prime is 3789693953. The reversal of 3789693857 is 7583969873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3552040801 + 237653056 = 59599^2 + 15416^2 .

It is a cyclic number.

It is not a de Polignac number, because 3789693857 - 2¹⁸ = 3789431713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3789693793 and 3789693802.

It is not a weakly prime, because it can be changed into another prime (3789692857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1894846928 + 1894846929.

It is an arithmetic number, because the mean of its divisors is an integer number (1894846929).

Almost surely, 2^3789693857 is an apocalyptic number.

It is an amenable number.

3789693857 is a deficient number, since it is larger than the sum of its proper divisors (1).

3789693857 is an equidigital number, since it uses as much as digits as its factorization.

3789693857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68584320, while the sum is 65.

The square root of 3789693857 is about 61560.4894148836. The cubic root of 3789693857 is about 1559.0787154230.

The spelling of 3789693857 in words is "three billion, seven hundred eighty-nine million, six hundred ninety-three thousand, eight hundred fifty-seven".