828431307 has 20 divisors (see below), whose sum is σ = 1350037656. Its totient is φ = 502079040.

The previous prime is 828431299. The next prime is 828431311. The reversal of 828431307 is 703134828.

It is not a de Polignac number, because 828431307 - 2³ = 828431299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828431347) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 463998 + ... + 465779.

Almost surely, 2^828431307 is an apocalyptic number.

828431307 is a deficient number, since it is larger than the sum of its proper divisors (521606349).

828431307 is a wasteful number, since it uses less digits than its factorization.

828431307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929800 (or 929791 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 828431307 is about 28782.4826413567. The cubic root of 828431307 is about 939.1872055783.

The spelling of 828431307 in words is "eight hundred twenty-eight million, four hundred thirty-one thousand, three hundred seven".