3520037 has 4 divisors (see below), whose sum is σ = 3727116. Its totient is φ = 3312960.

The previous prime is 3520021. The next prime is 3520043. The reversal of 3520037 is 7300253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7300253 = 67 ⋅108959.

It can be written as a sum of positive squares in 2 ways, for example, as 3290596 + 229441 = 1814^2 + 479^2 .

It is not a de Polignac number, because 3520037 - 2⁴ = 3520021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520007) 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, 103514 + ... + 103547.

It is an arithmetic number, because the mean of its divisors is an integer number (931779).

Almost surely, 2^3520037 is an apocalyptic number.

It is an amenable number.

3520037 is a deficient number, since it is larger than the sum of its proper divisors (207079).

3520037 is a wasteful number, since it uses less digits than its factorization.

3520037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207078.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 3520037 is about 1876.1761644366. The cubic root of 3520037 is about 152.1186314181.

The spelling of 3520037 in words is "three million, five hundred twenty thousand, thirty-seven".