724953 has 4 divisors (see below), whose sum is σ = 966608. Its totient is φ = 483300.

The previous prime is 724949. The next prime is 724961. The reversal of 724953 is 359427.

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: 359427 = 3 ⋅119809.

It is not a de Polignac number, because 724953 - 2² = 724949 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 724953.

It is not an unprimeable number, because it can be changed into a prime (724903) 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, 120823 + ... + 120828.

It is an arithmetic number, because the mean of its divisors is an integer number (241652).

2⁷²⁴⁹⁵³ is an apocalyptic number.

It is an amenable number.

724953 is a deficient number, since it is larger than the sum of its proper divisors (241655).

724953 is a wasteful number, since it uses less digits than its factorization.

724953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241654.

The product of its digits is 7560, while the sum is 30.

The square root of 724953 is about 851.4417184987. The cubic root of 724953 is about 89.8331476512.

The spelling of 724953 in words is "seven hundred twenty-four thousand, nine hundred fifty-three".