610769 has 4 divisors (see below), whose sum is σ = 631860. Its totient is φ = 589680.

The previous prime is 610763. The next prime is 610781. The reversal of 610769 is 967016.

It is a happy number.

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 508369 + 102400 = 713^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 610769 - 2¹² = 606673 is a prime.

It is a super-2 number, since 2×610769² = 746077542722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 21061 = 610769 / (6 + 1 + 0 + 7 + 6 + 9).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 610769.

It is not an unprimeable number, because it can be changed into a prime (610763) 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, 10502 + ... + 10559.

It is an arithmetic number, because the mean of its divisors is an integer number (157965).

2⁶¹⁰⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

610769 is a deficient number, since it is larger than the sum of its proper divisors (21091).

610769 is a wasteful number, since it uses less digits than its factorization.

610769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21090.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 610769 is about 781.5171143360. The cubic root of 610769 is about 84.8448843465.

The spelling of 610769 in words is "six hundred ten thousand, seven hundred sixty-nine".