612428461 has 4 divisors (see below), whose sum is σ = 620180800. Its totient is φ = 604676124.

The previous prime is 612428413. The next prime is 612428507. The reversal of 612428461 is 164824216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612428461 - 2¹⁹ = 611904173 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 (612428261) 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, 3876051 + ... + 3876208.

It is an arithmetic number, because the mean of its divisors is an integer number (155045200).

Almost surely, 2^612428461 is an apocalyptic number.

It is an amenable number.

612428461 is a deficient number, since it is larger than the sum of its proper divisors (7752339).

612428461 is an equidigital number, since it uses as much as digits as its factorization.

612428461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7752338.

The product of its digits is 18432, while the sum is 34.

The square root of 612428461 is about 24747.2919932667. The cubic root of 612428461 is about 849.2165611770.

The spelling of 612428461 in words is "six hundred twelve million, four hundred twenty-eight thousand, four hundred sixty-one".