720465 has 16 divisors (see below), whose sum is σ = 1180608. Its totient is φ = 374976.

The previous prime is 720439. The next prime is 720481. The reversal of 720465 is 564027.

It is a happy number.

It is not a de Polignac number, because 720465 - 2¹⁰ = 719441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87 + ... + 1203.

It is an arithmetic number, because the mean of its divisors is an integer number (73788).

2⁷²⁰⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

720465 is a deficient number, since it is larger than the sum of its proper divisors (460143).

720465 is a wasteful number, since it uses less digits than its factorization.

720465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 720465 is about 848.8020970756. The cubic root of 720465 is about 89.6473857160.

The spelling of 720465 in words is "seven hundred twenty thousand, four hundred sixty-five".