724087 has 16 divisors (see below), whose sum is σ = 911680. Its totient is φ = 559872.

The previous prime is 724079. The next prime is 724093. The reversal of 724087 is 780427.

724087 is nontrivially palindromic in base 9.

It is a 8-Lehmer number, since φ(724087) divides (724087-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 724087 - 2³ = 724079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6589 + ... + 6697.

It is an arithmetic number, because the mean of its divisors is an integer number (56980).

2⁷²⁴⁰⁸⁷ is an apocalyptic number.

724087 is a deficient number, since it is larger than the sum of its proper divisors (187593).

724087 is a wasteful number, since it uses less digits than its factorization.

724087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 724087 is about 850.9330173404. The cubic root of 724087 is about 89.7973630309.

The spelling of 724087 in words is "seven hundred twenty-four thousand, eighty-seven".