3520987 has 2 divisors, whose sum is σ = 3520988. Its totient is φ = 3520986.

The previous prime is 3520973. The next prime is 3520991. The reversal of 3520987 is 7890253.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3520987 - 2¹¹ = 3518939 is a prime.

It is not a weakly prime, because it can be changed into another prime (3520927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760493 + 1760494.

It is an arithmetic number, because the mean of its divisors is an integer number (1760494).

Almost surely, 2^3520987 is an apocalyptic number.

3520987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520987 is an equidigital number, since it uses as much as digits as its factorization.

3520987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 3520987 is about 1876.4293218771. The cubic root of 3520987 is about 152.1323149581.

The spelling of 3520987 in words is "three million, five hundred twenty thousand, nine hundred eighty-seven".