320699007 has 24 divisors (see below), whose sum is σ = 492120720. Its totient is φ = 208578240.

The previous prime is 320698997. The next prime is 320699011. The reversal of 320699007 is 700996023.

It is not a de Polignac number, because 320699007 - 2²² = 316504703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320699087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6132 + ... + 26057.

It is an arithmetic number, because the mean of its divisors is an integer number (20505030).

Almost surely, 2^320699007 is an apocalyptic number.

320699007 is a deficient number, since it is larger than the sum of its proper divisors (171421713).

320699007 is an equidigital number, since it uses as much as digits as its factorization.

320699007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32245 (or 32233 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 320699007 is about 17908.0710016462. The cubic root of 320699007 is about 684.4880519563.

The spelling of 320699007 in words is "three hundred twenty million, six hundred ninety-nine thousand, seven".