712720 has 40 divisors (see below), whose sum is σ = 1696320. Its totient is φ = 278400.

The previous prime is 712717. The next prime is 712739. The reversal of 712720 is 27217.

712720 = T₁₂₅ + T₁₂₆ + ... + T₁₈₃.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4645 + ... + 4795.

It is an arithmetic number, because the mean of its divisors is an integer number (42408).

2⁷¹²⁷²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848160).

712720 is an abundant number, since it is smaller than the sum of its proper divisors (983600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

712720 is a wasteful number, since it uses less digits than its factorization.

712720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 712720 is about 844.2274575018. The cubic root of 712720 is about 89.3249911767.

Adding to 712720 its reverse (27217), we get a palindrome (739937).

The spelling of 712720 in words is "seven hundred twelve thousand, seven hundred twenty", and thus it is an iban number.