613406 has 4 divisors (see below), whose sum is σ = 920112. Its totient is φ = 306702.

The previous prime is 613381. The next prime is 613421. The reversal of 613406 is 604316.

613406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

613406 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 as a sum of consecutive naturals, namely, 153350 + ... + 153353.

It is an arithmetic number, because the mean of its divisors is an integer number (230028).

2⁶¹³⁴⁰⁶ is an apocalyptic number.

613406 is a deficient number, since it is larger than the sum of its proper divisors (306706).

613406 is a wasteful number, since it uses less digits than its factorization.

613406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306705.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 613406 is about 783.2024004049. The cubic root of 613406 is about 84.9668151890.

The spelling of 613406 in words is "six hundred thirteen thousand, four hundred six".