807245 has 8 divisors (see below), whose sum is σ = 1025784. Its totient is φ = 607744.

The previous prime is 807241. The next prime is 807251. The reversal of 807245 is 542708.

It can be written as a sum of positive squares in 4 ways, for example, as 27556 + 779689 = 166^2 + 883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 807245 - 2² = 807241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (807241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4664 + ... + 4833.

It is an arithmetic number, because the mean of its divisors is an integer number (128223).

2⁸⁰⁷²⁴⁵ is an apocalyptic number.

807245 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

807245 is a deficient number, since it is larger than the sum of its proper divisors (218539).

807245 is a wasteful number, since it uses less digits than its factorization.

807245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9519.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 807245 is about 898.4681407819. The cubic root of 807245 is about 93.1111708666. Note that the first 4 decimals are identical.

The spelling of 807245 in words is "eight hundred seven thousand, two hundred forty-five".