321964001 has 4 divisors (see below), whose sum is σ = 322006272. Its totient is φ = 321921732.

The previous prime is 321963991. The next prime is 321964009. The reversal of 321964001 is 100469123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100469123 = 1993 ⋅50411.

It is a cyclic number.

It is not a de Polignac number, because 321964001 - 2⁶ = 321963937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321964009) 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, 6185 + ... + 26118.

It is an arithmetic number, because the mean of its divisors is an integer number (80501568).

Almost surely, 2^321964001 is an apocalyptic number.

It is an amenable number.

321964001 is a deficient number, since it is larger than the sum of its proper divisors (42271).

321964001 is an equidigital number, since it uses as much as digits as its factorization.

321964001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42270.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 321964001 is about 17943.3553439706. The cubic root of 321964001 is about 685.3868566216.

The spelling of 321964001 in words is "three hundred twenty-one million, nine hundred sixty-four thousand, one".