3506949 has 8 divisors (see below), whose sum is σ = 5195520. Its totient is φ = 2337948.

The previous prime is 3506939. The next prime is 3506969. The reversal of 3506949 is 9496053.

It is not a de Polignac number, because 3506949 - 2⁴ = 3506933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64917 + ... + 64970.

It is an arithmetic number, because the mean of its divisors is an integer number (649440).

Almost surely, 2^3506949 is an apocalyptic number.

It is an amenable number.

3506949 is a deficient number, since it is larger than the sum of its proper divisors (1688571).

3506949 is a wasteful number, since it uses less digits than its factorization.

3506949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129896 (or 129890 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 3506949 is about 1872.6849708373. The cubic root of 3506949 is about 151.9298643421.

It can be divided in two parts, 350694 and 9, that added together give a triangular number (350703 = T₈₃₇).

The spelling of 3506949 in words is "three million, five hundred six thousand, nine hundred forty-nine".