3520667 has 2 divisors, whose sum is σ = 3520668. Its totient is φ = 3520666.

The previous prime is 3520663. The next prime is 3520669. The reversal of 3520667 is 7660253.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3520667 - 2² = 3520663 is a prime.

It is a super-2 number, since 2×3520667² = 24790192249778, which contains 22 as substring.

Together with 3520669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3520663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760333 + 1760334.

It is an arithmetic number, because the mean of its divisors is an integer number (1760334).

Almost surely, 2^3520667 is an apocalyptic number.

3520667 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520667 is an equidigital number, since it uses as much as digits as its factorization.

3520667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 3520667 is about 1876.3440516067. The cubic root of 3520667 is about 152.1277060406.

It can be divided in two parts, 35 and 20667, that added together give a palindrome (20702).

The spelling of 3520667 in words is "three million, five hundred twenty thousand, six hundred sixty-seven".