620535606 has 16 divisors (see below), whose sum is σ = 1241395248. Its totient is φ = 206791200.

The previous prime is 620535521. The next prime is 620535631. The reversal of 620535606 is 606535026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16536 + ... + 38916.

It is an arithmetic number, because the mean of its divisors is an integer number (77587203).

Almost surely, 2^620535606 is an apocalyptic number.

620535606 is an abundant number, since it is smaller than the sum of its proper divisors (620859642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620535606 is a wasteful number, since it uses less digits than its factorization.

620535606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27007.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 620535606 is about 24910.5521014690. The cubic root of 620535606 is about 852.9473718771.

The spelling of 620535606 in words is "six hundred twenty million, five hundred thirty-five thousand, six hundred six".