612394867 has 4 divisors (see below), whose sum is σ = 699879856. Its totient is φ = 524909880.

The previous prime is 612394831. The next prime is 612394873. The reversal of 612394867 is 768493216.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612394867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612394817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43742484 + ... + 43742497.

It is an arithmetic number, because the mean of its divisors is an integer number (174969964).

Almost surely, 2^612394867 is an apocalyptic number.

612394867 is a deficient number, since it is larger than the sum of its proper divisors (87484989).

612394867 is an equidigital number, since it uses as much as digits as its factorization.

612394867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87484988.

The product of its digits is 435456, while the sum is 46.

The square root of 612394867 is about 24746.6132430278. The cubic root of 612394867 is about 849.2010333210.

The spelling of 612394867 in words is "six hundred twelve million, three hundred ninety-four thousand, eight hundred sixty-seven".