612654 has 32 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 168672.

The previous prime is 612649. The next prime is 612671. The reversal of 612654 is 456216.

612654 = 7² + 8² + ... + 122².

612654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 9 and base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 612654.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2⁶¹²⁶⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725760).

612654 is an abundant number, since it is smaller than the sum of its proper divisors (838866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612654 is a wasteful number, since it uses less digits than its factorization.

612654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its digits is 1440, while the sum is 24.

The square root of 612654 is about 782.7221729324. The cubic root of 612654 is about 84.9320795363.

The spelling of 612654 in words is "six hundred twelve thousand, six hundred fifty-four".