3448991 has 16 divisors (see below), whose sum is σ = 4290048. Its totient is φ = 2700000.

The previous prime is 3448981. The next prime is 3448993. The reversal of 3448991 is 1998443.

3448991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3448991 is a prime.

It is a super-3 number, since 3×3448991³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3448993) 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 in 15 ways as a sum of consecutive naturals, for example, 13616 + ... + 13866.

It is an arithmetic number, because the mean of its divisors is an integer number (268128).

Almost surely, 2^3448991 is an apocalyptic number.

3448991 is a deficient number, since it is larger than the sum of its proper divisors (841057).

3448991 is a wasteful number, since it uses less digits than its factorization.

3448991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

The product of its digits is 31104, while the sum is 38.

The square root of 3448991 is about 1857.1459285689. The cubic root of 3448991 is about 151.0882486357.

The spelling of 3448991 in words is "three million, four hundred forty-eight thousand, nine hundred ninety-one".