610990 has 8 divisors (see below), whose sum is σ = 1099800. Its totient is φ = 244392.

The previous prime is 610969. The next prime is 610993. The reversal of 610990 is 99016.

610990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610993) by changing a digit.

610990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30540 + ... + 30559.

It is an arithmetic number, because the mean of its divisors is an integer number (137475).

2⁶¹⁰⁹⁹⁰ is an apocalyptic number.

610990 is a deficient number, since it is larger than the sum of its proper divisors (488810).

610990 is a wasteful number, since it uses less digits than its factorization.

610990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61106.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 610990 is about 781.6584932053. The cubic root of 610990 is about 84.8551165065.

It can be divided in two parts, 610 and 990, that added together give a square (1600 = 40²).

The spelling of 610990 in words is "six hundred ten thousand, nine hundred ninety".