3620539 has 4 divisors (see below), whose sum is σ = 3899056. Its totient is φ = 3342024.

The previous prime is 3620537. The next prime is 3620567. The reversal of 3620539 is 9350263.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3620539 - 2¹ = 3620537 is a prime.

It is a Duffinian number.

3620539 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620537) 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, 139239 + ... + 139264.

It is an arithmetic number, because the mean of its divisors is an integer number (974764).

Almost surely, 2^3620539 is an apocalyptic number.

3620539 is a deficient number, since it is larger than the sum of its proper divisors (278517).

3620539 is a wasteful number, since it uses less digits than its factorization.

3620539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278516.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 3620539 is about 1902.7713998271. The cubic root of 3620539 is about 153.5528011402.

The spelling of 3620539 in words is "three million, six hundred twenty thousand, five hundred thirty-nine".