3521819 has 8 divisors (see below), whose sum is σ = 4070880. Its totient is φ = 2984256.

The previous prime is 3521803. The next prime is 3521831. The reversal of 3521819 is 9181253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3521819 - 2⁴ = 3521803 is a prime.

It is a super-2 number, since 2×3521819² = 24806418137522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3521791 and 3521800.

It is not an unprimeable number, because it can be changed into a prime (3521519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2204 + ... + 3449.

It is an arithmetic number, because the mean of its divisors is an integer number (508860).

Almost surely, 2^3521819 is an apocalyptic number.

3521819 is a deficient number, since it is larger than the sum of its proper divisors (549061).

3521819 is an equidigital number, since it uses as much as digits as its factorization.

3521819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749.

The product of its digits is 2160, while the sum is 29.

The square root of 3521819 is about 1876.6510064474. The cubic root of 3521819 is about 152.1442968369.

The spelling of 3521819 in words is "three million, five hundred twenty-one thousand, eight hundred nineteen".