609639485 has 32 divisors (see below), whose sum is σ = 905049600. Its totient is φ = 383885568.

The previous prime is 609639473. The next prime is 609639487. The reversal of 609639485 is 584936906.

609639485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 609639485 - 2⁴ = 609639469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609639487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87179 + ... + 93911.

It is an arithmetic number, because the mean of its divisors is an integer number (28282800).

Almost surely, 2^609639485 is an apocalyptic number.

609639485 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

609639485 is a deficient number, since it is larger than the sum of its proper divisors (295410115).

609639485 is a wasteful number, since it uses less digits than its factorization.

609639485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6957.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 609639485 is about 24690.8785789408. The cubic root of 609639485 is about 847.9254993623.

The spelling of 609639485 in words is "six hundred nine million, six hundred thirty-nine thousand, four hundred eighty-five".