3520837 has 2 divisors, whose sum is σ = 3520838. Its totient is φ = 3520836.

The previous prime is 3520813. The next prime is 3520841. The reversal of 3520837 is 7380253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3437316 + 83521 = 1854^2 + 289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3520837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3520897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760418 + 1760419.

It is an arithmetic number, because the mean of its divisors is an integer number (1760419).

Almost surely, 2^3520837 is an apocalyptic number.

It is an amenable number.

3520837 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520837 is an equidigital number, since it uses as much as digits as its factorization.

3520837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 3520837 is about 1876.3893519203. The cubic root of 3520837 is about 152.1301545628.

It can be divided in two parts, 35208 and 37, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 3520837 in words is "three million, five hundred twenty thousand, eight hundred thirty-seven".