3809497841 has 2 divisors, whose sum is σ = 3809497842. Its totient is φ = 3809497840.

The previous prime is 3809497831. The next prime is 3809497871. The reversal of 3809497841 is 1487949083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3203107216 + 606390625 = 56596^2 + 24625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3809497841 is a prime.

It is a super-2 number, since 2×3809497841² = 29024547601167322562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3809497831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1904748920 + 1904748921.

It is an arithmetic number, because the mean of its divisors is an integer number (1904748921).

Almost surely, 2^3809497841 is an apocalyptic number.

It is an amenable number.

3809497841 is a deficient number, since it is larger than the sum of its proper divisors (1).

3809497841 is an equidigital number, since it uses as much as digits as its factorization.

3809497841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 3809497841 is about 61721.1296153918. The cubic root of 3809497841 is about 1561.7897824517.

The spelling of 3809497841 in words is "three billion, eight hundred nine million, four hundred ninety-seven thousand, eight hundred forty-one".