3506969 has 2 divisors, whose sum is σ = 3506970. Its totient is φ = 3506968.

The previous prime is 3506939. The next prime is 3506983. The reversal of 3506969 is 9696053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3193369 + 313600 = 1787^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 3506969 - 2¹⁶ = 3441433 is a prime.

It is a super-2 number, since 2×3506969² = 24597663133922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3506929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1753484 + 1753485.

It is an arithmetic number, because the mean of its divisors is an integer number (1753485).

Almost surely, 2^3506969 is an apocalyptic number.

It is an amenable number.

3506969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3506969 is an equidigital number, since it uses as much as digits as its factorization.

3506969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 3506969 is about 1872.6903107562. The cubic root of 3506969 is about 151.9301531583.

The spelling of 3506969 in words is "three million, five hundred six thousand, nine hundred sixty-nine".