612706427 has 4 divisors (see below), whose sum is σ = 613402776. Its totient is φ = 612010080.

The previous prime is 612706399. The next prime is 612706463. The reversal of 612706427 is 724607216.

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 612706427 - 2¹² = 612702331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612706477) 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, 346853 + ... + 348614.

It is an arithmetic number, because the mean of its divisors is an integer number (153350694).

Almost surely, 2^612706427 is an apocalyptic number.

612706427 is a deficient number, since it is larger than the sum of its proper divisors (696349).

612706427 is an equidigital number, since it uses as much as digits as its factorization.

612706427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696348.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 612706427 is about 24752.9074453891. The cubic root of 612706427 is about 849.3450211478.

The spelling of 612706427 in words is "six hundred twelve million, seven hundred six thousand, four hundred twenty-seven".