610690 has 16 divisors (see below), whose sum is σ = 1108728. Its totient is φ = 242176.

The previous prime is 610681. The next prime is 610699. The reversal of 610690 is 96016.

It is an interprime number because it is at equal distance from previous prime (610681) and next prime (610699).

It can be written as a sum of positive squares in 4 ways, for example, as 567009 + 43681 = 753^2 + 209^2 .

It is a super-2 number, since 2×610690² = 745884552200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (610699) by changing a digit.

610690 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554 + ... + 1906.

2⁶¹⁰⁶⁹⁰ is an apocalyptic number.

610690 is a deficient number, since it is larger than the sum of its proper divisors (498038).

610690 is a wasteful number, since it uses less digits than its factorization.

610690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 610690 is about 781.4665699824. The cubic root of 610690 is about 84.8412260978.

The spelling of 610690 in words is "six hundred ten thousand, six hundred ninety".