729622 has 8 divisors (see below), whose sum is σ = 1107000. Its totient is φ = 360624.

The previous prime is 729613. The next prime is 729637. The reversal of 729622 is 226927.

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

It is a congruent number.

It is an unprimeable number.

729622 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, 1872 + ... + 2227.

It is an arithmetic number, because the mean of its divisors is an integer number (138375).

2⁷²⁹⁶²² is an apocalyptic number.

729622 is a deficient number, since it is larger than the sum of its proper divisors (377378).

729622 is a wasteful number, since it uses less digits than its factorization.

729622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190.

The product of its digits is 3024, while the sum is 28.

The square root of 729622 is about 854.1791381203. The cubic root of 729622 is about 90.0255894314.

It can be divided in two parts, 72962 and 2, that multiplied together give a square (145924 = 382²).

The spelling of 729622 in words is "seven hundred twenty-nine thousand, six hundred twenty-two".