3849949 has 2 divisors, whose sum is σ = 3849950. Its totient is φ = 3849948.

The previous prime is 3849943. The next prime is 3849977. The reversal of 3849949 is 9499483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3541924 + 308025 = 1882^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 3849949 - 2⁷ = 3849821 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3849899 and 3849908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3849943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1924974 + 1924975.

It is an arithmetic number, because the mean of its divisors is an integer number (1924975).

Almost surely, 2^3849949 is an apocalyptic number.

It is an amenable number.

3849949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3849949 is an equidigital number, since it uses as much as digits as its factorization.

3849949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 3849949 is about 1962.1286909884. The cubic root of 3849949 is about 156.7298286642.

It can be divided in two parts, 384994 and 9, that added together give a triangular number (385003 = T₈₇₇).

The spelling of 3849949 in words is "three million, eight hundred forty-nine thousand, nine hundred forty-nine".