724474 has 4 divisors (see below), whose sum is σ = 1086714. Its totient is φ = 362236.

The previous prime is 724469. The next prime is 724481. The reversal of 724474 is 474427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 570025 + 154449 = 755^2 + 393^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181117 + ... + 181120.

2⁷²⁴⁴⁷⁴ is an apocalyptic number.

724474 is a deficient number, since it is larger than the sum of its proper divisors (362240).

724474 is a wasteful number, since it uses less digits than its factorization.

724474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362239.

The product of its digits is 6272, while the sum is 28.

The square root of 724474 is about 851.1603844165. The cubic root of 724474 is about 89.8133580656.

Subtracting from 724474 its reverse (474427), we obtain a cube (250047 = 63³).

The spelling of 724474 in words is "seven hundred twenty-four thousand, four hundred seventy-four", and thus it is an iban number.