612899 has 4 divisors (see below), whose sum is σ = 700464. Its totient is φ = 525336.

The previous prime is 612889. The next prime is 612923. The reversal of 612899 is 998216.

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

It is not a de Polignac number, because 612899 - 2⁸ = 612643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612809) 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, 43772 + ... + 43785.

It is an arithmetic number, because the mean of its divisors is an integer number (175116).

2⁶¹²⁸⁹⁹ is an apocalyptic number.

612899 is a deficient number, since it is larger than the sum of its proper divisors (87565).

612899 is an equidigital number, since it uses as much as digits as its factorization.

612899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87564.

The product of its digits is 7776, while the sum is 35.

The square root of 612899 is about 782.8786623737. The cubic root of 612899 is about 84.9433994583.

The spelling of 612899 in words is "six hundred twelve thousand, eight hundred ninety-nine".