720375 has 32 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 358400.

The previous prime is 720373. The next prime is 720397. The reversal of 720375 is 573027.

It is not a de Polignac number, because 720375 - 2¹ = 720373 is a prime.

720375 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6319 + ... + 6431.

It is an arithmetic number, because the mean of its divisors is an integer number (40014).

2⁷²⁰³⁷⁵ is an apocalyptic number.

720375 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

720375 is a deficient number, since it is larger than the sum of its proper divisors (560073).

720375 is a wasteful number, since it uses less digits than its factorization.

720375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 720375 is about 848.7490795282. The cubic root of 720375 is about 89.6436526636.

It can be divided in two parts, 7203 and 75, that multiplied together give a square (540225 = 735²).

The spelling of 720375 in words is "seven hundred twenty thousand, three hundred seventy-five".