610864445 has 4 divisors (see below), whose sum is σ = 733037340. Its totient is φ = 488691552.

The previous prime is 610864433. The next prime is 610864447. The reversal of 610864445 is 544468016.

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 437520889 + 173343556 = 20917^2 + 13166^2 .

It is a cyclic number.

It is not a de Polignac number, because 610864445 - 2¹⁸ = 610602301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 610864399 and 610864408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610864447) 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, 61086440 + ... + 61086449.

It is an arithmetic number, because the mean of its divisors is an integer number (183259335).

Almost surely, 2^610864445 is an apocalyptic number.

It is an amenable number.

610864445 is a deficient number, since it is larger than the sum of its proper divisors (122172895).

610864445 is a wasteful number, since it uses less digits than its factorization.

610864445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122172894.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 610864445 is about 24715.6720523639. The cubic root of 610864445 is about 848.4930369232.

The spelling of 610864445 in words is "six hundred ten million, eight hundred sixty-four thousand, four hundred forty-five".