720011 has 4 divisors (see below), whose sum is σ = 730224. Its totient is φ = 709800.

The previous prime is 720007. The next prime is 720019. The reversal of 720011 is 110027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110027 = 47 ⋅2341.

It is a cyclic number.

It is not a de Polignac number, because 720011 - 2² = 720007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 719974 and 720001.

It is not an unprimeable number, because it can be changed into a prime (720019) 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, 5000 + ... + 5141.

It is an arithmetic number, because the mean of its divisors is an integer number (182556).

2⁷²⁰⁰¹¹ is an apocalyptic number.

720011 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

720011 is a deficient number, since it is larger than the sum of its proper divisors (10213).

720011 is a wasteful number, since it uses less digits than its factorization.

720011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 720011 is about 848.5346192113. The cubic root of 720011 is about 89.6285513682.

Adding to 720011 its reverse (110027), we get a palindrome (830038).

The spelling of 720011 in words is "seven hundred twenty thousand, eleven", and thus it is an iban number.