828725207 has 4 divisors (see below), whose sum is σ = 830751840. Its totient is φ = 826698576.

The previous prime is 828725189. The next prime is 828725221. The reversal of 828725207 is 702527828.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 828725207 - 2⁶ = 828725143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828725237) 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, 1012703 + ... + 1013520.

It is an arithmetic number, because the mean of its divisors is an integer number (207687960).

Almost surely, 2^828725207 is an apocalyptic number.

828725207 is a deficient number, since it is larger than the sum of its proper divisors (2026633).

828725207 is a wasteful number, since it uses less digits than its factorization.

828725207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026632.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 828725207 is about 28787.5877245732. The cubic root of 828725207 is about 939.2982566222.

The spelling of 828725207 in words is "eight hundred twenty-eight million, seven hundred twenty-five thousand, two hundred seven".