3520239 has 8 divisors (see below), whose sum is σ = 4704000. Its totient is φ = 2341656.

The previous prime is 3520229. The next prime is 3520243. The reversal of 3520239 is 9320253.

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

It is not a de Polignac number, because 3520239 - 2⁸ = 3519983 is a prime.

3520239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520229) 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, 762 + ... + 2760.

It is an arithmetic number, because the mean of its divisors is an integer number (588000).

Almost surely, 2^3520239 is an apocalyptic number.

3520239 is a deficient number, since it is larger than the sum of its proper divisors (1183761).

3520239 is a wasteful number, since it uses less digits than its factorization.

3520239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 3520239 is about 1876.2299965623. The cubic root of 3520239 is about 152.1215411769.

The spelling of 3520239 in words is "three million, five hundred twenty thousand, two hundred thirty-nine".