612844061 has 4 divisors (see below), whose sum is σ = 629407452. Its totient is φ = 596280672.

The previous prime is 612844027. The next prime is 612844091. The reversal of 612844061 is 160448216.

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

It can be written as a sum of positive squares in 2 ways, for example, as 390655225 + 222188836 = 19765^2 + 14906^2 .

It is a cyclic number.

It is not a de Polignac number, because 612844061 - 2²² = 608649757 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 (612844091) 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, 8281640 + ... + 8281713.

It is an arithmetic number, because the mean of its divisors is an integer number (157351863).

Almost surely, 2^612844061 is an apocalyptic number.

It is an amenable number.

612844061 is a deficient number, since it is larger than the sum of its proper divisors (16563391).

612844061 is a wasteful number, since it uses less digits than its factorization.

612844061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16563390.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 612844061 is about 24755.6874475342. The cubic root of 612844061 is about 849.4086133215.

The spelling of 612844061 in words is "six hundred twelve million, eight hundred forty-four thousand, sixty-one".