720097 has 4 divisors (see below), whose sum is σ = 822976. Its totient is φ = 617220.

The previous prime is 720091. The next prime is 720101. The reversal of 720097 is 790027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 720097 - 2³ = 720089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720091) 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, 51429 + ... + 51442.

It is an arithmetic number, because the mean of its divisors is an integer number (205744).

2⁷²⁰⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

720097 is a deficient number, since it is larger than the sum of its proper divisors (102879).

720097 is a wasteful number, since it uses less digits than its factorization.

720097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102878.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 720097 is about 848.5852932970. The cubic root of 720097 is about 89.6321197158.

The spelling of 720097 in words is "seven hundred twenty thousand, ninety-seven".