3520379 has 4 divisors (see below), whose sum is σ = 3529560. Its totient is φ = 3511200.

The previous prime is 3520351. The next prime is 3520399. The reversal of 3520379 is 9730253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9730253 = 13 ⋅748481.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3520379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3520399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3989 + ... + 4790.

It is an arithmetic number, because the mean of its divisors is an integer number (882390).

Almost surely, 2^3520379 is an apocalyptic number.

3520379 is a deficient number, since it is larger than the sum of its proper divisors (9181).

3520379 is an equidigital number, since it uses as much as digits as its factorization.

3520379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9180.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 3520379 is about 1876.2673050501. The cubic root of 3520379 is about 152.1235577761.

The spelling of 3520379 in words is "three million, five hundred twenty thousand, three hundred seventy-nine".