610491 has 12 divisors (see below), whose sum is σ = 947112. Its totient is φ = 348768.

The previous prime is 610469. The next prime is 610501. The reversal of 610491 is 194016.

610491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 610491 - 2⁹ = 609979 is a prime.

It is a super-2 number, since 2×610491² = 745398522162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 610491.

It is not an unprimeable number, because it can be changed into a prime (610391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1930 + ... + 2223.

It is an arithmetic number, because the mean of its divisors is an integer number (78926).

2⁶¹⁰⁴⁹¹ is an apocalyptic number.

610491 is a deficient number, since it is larger than the sum of its proper divisors (336621).

610491 is a wasteful number, since it uses less digits than its factorization.

610491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 4163 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 610491 is about 781.3392349038. The cubic root of 610491 is about 84.8320096168.

The spelling of 610491 in words is "six hundred ten thousand, four hundred ninety-one".