724677 has 4 divisors (see below), whose sum is σ = 966240. Its totient is φ = 483116.

The previous prime is 724651. The next prime is 724721. The reversal of 724677 is 776427.

It is a happy number.

724677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 776427 = 3 ⋅258809.

It is a cyclic number.

It is not a de Polignac number, because 724677 - 2¹⁴ = 708293 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120777 + ... + 120782.

It is an arithmetic number, because the mean of its divisors is an integer number (241560).

2⁷²⁴⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

724677 is a deficient number, since it is larger than the sum of its proper divisors (241563).

724677 is a wasteful number, since it uses less digits than its factorization.

724677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241562.

The product of its digits is 16464, while the sum is 33.

The square root of 724677 is about 851.2796250352. The cubic root of 724677 is about 89.8217459484.

The spelling of 724677 in words is "seven hundred twenty-four thousand, six hundred seventy-seven".