634722 has 32 divisors (see below), whose sum is σ = 1416960. Its totient is φ = 187920.

The previous prime is 634717. The next prime is 634727. The reversal of 634722 is 227436.

It is an interprime number because it is at equal distance from previous prime (634717) and next prime (634727).

It is a d-powerful number, because it can be written as 6³ + 3⁹ + 7⁵ + 4⁸ + 2¹³ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 634692 and 634701.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 634722.

It is not an unprimeable number, because it can be changed into a prime (634727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3813 + ... + 3975.

It is an arithmetic number, because the mean of its divisors is an integer number (44280).

2⁶³⁴⁷²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708480).

634722 is an abundant number, since it is smaller than the sum of its proper divisors (782238).

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

634722 is a wasteful number, since it uses less digits than its factorization.

634722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its digits is 2016, while the sum is 24.

The square root of 634722 is about 796.6944207160. The cubic root of 634722 is about 85.9398353305.

The spelling of 634722 in words is "six hundred thirty-four thousand, seven hundred twenty-two".