320672007 has 32 divisors (see below), whose sum is σ = 490200000. Its totient is φ = 207028224.

The previous prime is 320671999. The next prime is 320672017. The reversal of 320672007 is 700276023.

It is not a de Polignac number, because 320672007 - 2³ = 320671999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320672017) 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, 256119 + ... + 257367.

It is an arithmetic number, because the mean of its divisors is an integer number (15318750).

Almost surely, 2^320672007 is an apocalyptic number.

320672007 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

320672007 is a deficient number, since it is larger than the sum of its proper divisors (169527993).

320672007 is a wasteful number, since it uses less digits than its factorization.

320672007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1546 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 320672007 is about 17907.3171357409. The cubic root of 320672007 is about 684.4688421514.

The spelling of 320672007 in words is "three hundred twenty million, six hundred seventy-two thousand, seven".