724001335 has 4 divisors (see below), whose sum is σ = 868801608. Its totient is φ = 579201064.

The previous prime is 724001309. The next prime is 724001339. The reversal of 724001335 is 533100427.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724001335 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724001339) 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, 72400129 + ... + 72400138.

It is an arithmetic number, because the mean of its divisors is an integer number (217200402).

Almost surely, 2^724001335 is an apocalyptic number.

724001335 is a deficient number, since it is larger than the sum of its proper divisors (144800273).

724001335 is a wasteful number, since it uses less digits than its factorization.

724001335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144800272.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 724001335 is about 26907.2729015781. The cubic root of 724001335 is about 897.9382165419.

The spelling of 724001335 in words is "seven hundred twenty-four million, one thousand, three hundred thirty-five".