612659 has 4 divisors (see below), whose sum is σ = 621360. Its totient is φ = 603960.

The previous prime is 612649. The next prime is 612671. The reversal of 612659 is 956216.

612659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 612659 - 2⁴ = 612643 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (612649) 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, 4244 + ... + 4385.

It is an arithmetic number, because the mean of its divisors is an integer number (155340).

2⁶¹²⁶⁵⁹ is an apocalyptic number.

612659 is a deficient number, since it is larger than the sum of its proper divisors (8701).

612659 is an equidigital number, since it uses as much as digits as its factorization.

612659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8700.

The product of its digits is 3240, while the sum is 29.

The square root of 612659 is about 782.7253669072. The cubic root of 612659 is about 84.9323105853.

The spelling of 612659 in words is "six hundred twelve thousand, six hundred fifty-nine".