612315679 has 4 divisors (see below), whose sum is σ = 644542840. Its totient is φ = 580088520.

The previous prime is 612315677. The next prime is 612315703. The reversal of 612315679 is 976513216.

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 612315679 - 2¹ = 612315677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612315677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16113552 + ... + 16113589.

It is an arithmetic number, because the mean of its divisors is an integer number (161135710).

Almost surely, 2^612315679 is an apocalyptic number.

612315679 is a deficient number, since it is larger than the sum of its proper divisors (32227161).

612315679 is a wasteful number, since it uses less digits than its factorization.

612315679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32227160.

The product of its digits is 68040, while the sum is 40.

The square root of 612315679 is about 24745.0132147873. The cubic root of 612315679 is about 849.1644287086.

The spelling of 612315679 in words is "six hundred twelve million, three hundred fifteen thousand, six hundred seventy-nine".