3520427 has 2 divisors, whose sum is σ = 3520428. Its totient is φ = 3520426.

The previous prime is 3520399. The next prime is 3520457. The reversal of 3520427 is 7240253.

It is a weak prime.

It is an emirp because it is prime and its reverse (7240253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3520427 - 2¹⁴ = 3504043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3520457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760213 + 1760214.

It is an arithmetic number, because the mean of its divisors is an integer number (1760214).

Almost surely, 2^3520427 is an apocalyptic number.

3520427 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520427 is an equidigital number, since it uses as much as digits as its factorization.

3520427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 3520427 is about 1876.2800963609. The cubic root of 3520427 is about 152.1242491693.

The spelling of 3520427 in words is "three million, five hundred twenty thousand, four hundred twenty-seven".