724216 has 8 divisors (see below), whose sum is σ = 1357920. Its totient is φ = 362104.

The previous prime is 724211. The next prime is 724219. The reversal of 724216 is 612427.

724216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45256 + ... + 45271.

It is an arithmetic number, because the mean of its divisors is an integer number (169740).

2⁷²⁴²¹⁶ is an apocalyptic number.

It is an amenable number.

724216 is a deficient number, since it is larger than the sum of its proper divisors (633704).

724216 is a wasteful number, since it uses less digits than its factorization.

724216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90533 (or 90529 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 724216 is about 851.0088131154. The cubic root of 724216 is about 89.8026953422.

It can be divided in two parts, 72421 and 6, that added together give a palindrome (72427).

The spelling of 724216 in words is "seven hundred twenty-four thousand, two hundred sixteen".