675996321 has 64 divisors (see below), whose sum is σ = 1216696320. Its totient is φ = 322410240.

The previous prime is 675996319. The next prime is 675996341. The reversal of 675996321 is 123699576.

It is not a de Polignac number, because 675996321 - 2¹ = 675996319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (675996301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 687196 + ... + 688178.

It is an arithmetic number, because the mean of its divisors is an integer number (19010880).

Almost surely, 2^675996321 is an apocalyptic number.

It is an amenable number.

675996321 is a deficient number, since it is larger than the sum of its proper divisors (540699999).

675996321 is a wasteful number, since it uses less digits than its factorization.

675996321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its digits is 612360, while the sum is 48.

The square root of 675996321 is about 25999.9292499037. The cubic root of 675996321 is about 877.6367034041.

It can be divided in two parts, 67599 and 6321, that added together give a triangular number (73920 = T₃₈₄).

The spelling of 675996321 in words is "six hundred seventy-five million, nine hundred ninety-six thousand, three hundred twenty-one".