720003065 has 4 divisors (see below), whose sum is σ = 864003684. Its totient is φ = 576002448.

The previous prime is 720003059. The next prime is 720003071. The reversal of 720003065 is 560300027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560300027 = 7 ⋅80042861.

It is an interprime number because it is at equal distance from previous prime (720003059) and next prime (720003071).

It can be written as a sum of positive squares in 2 ways, for example, as 327646201 + 392356864 = 18101^2 + 19808^2 .

It is a cyclic number.

It is not a de Polignac number, because 720003065 - 2⁸ = 720002809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 720003065.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72000302 + ... + 72000311.

It is an arithmetic number, because the mean of its divisors is an integer number (216000921).

Almost surely, 2^720003065 is an apocalyptic number.

It is an amenable number.

720003065 is a deficient number, since it is larger than the sum of its proper divisors (144000619).

720003065 is a wasteful number, since it uses less digits than its factorization.

720003065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144000618.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 720003065 is about 26832.8728428396. The cubic root of 720003065 is about 896.2822211157.

The spelling of 720003065 in words is "seven hundred twenty million, three thousand, sixty-five".