724699 has 4 divisors (see below), whose sum is σ = 727560. Its totient is φ = 721840.

The previous prime is 724651. The next prime is 724721. The reversal of 724699 is 996427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996427 = 79 ⋅12613.

It is a cyclic number.

It is not a de Polignac number, because 724699 - 2⁹ = 724187 is a prime.

It is a Duffinian number.

724699 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (724609) 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, 1009 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (181890).

2⁷²⁴⁶⁹⁹ is an apocalyptic number.

724699 is a deficient number, since it is larger than the sum of its proper divisors (2861).

724699 is a wasteful number, since it uses less digits than its factorization.

724699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860.

The product of its digits is 27216, while the sum is 37.

The square root of 724699 is about 851.2925466607. The cubic root of 724699 is about 89.8226548860.

The spelling of 724699 in words is "seven hundred twenty-four thousand, six hundred ninety-nine".