724654 has 16 divisors (see below), whose sum is σ = 1253376. Its totient is φ = 307800.

The previous prime is 724651. The next prime is 724721. The reversal of 724654 is 456427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724651) 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 7 ways as a sum of consecutive naturals, for example, 2539 + ... + 2809.

It is an arithmetic number, because the mean of its divisors is an integer number (78336).

2⁷²⁴⁶⁵⁴ is an apocalyptic number.

724654 is a deficient number, since it is larger than the sum of its proper divisors (528722).

724654 is a wasteful number, since it uses less digits than its factorization.

724654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its digits is 6720, while the sum is 28.

The square root of 724654 is about 851.2661158533. The cubic root of 724654 is about 89.8207956759.

It can be divided in two parts, 724 and 654, that added together give a triangular number (1378 = T₅₂).

The spelling of 724654 in words is "seven hundred twenty-four thousand, six hundred fifty-four".