321741401 has 4 divisors (see below), whose sum is σ = 323158992. Its totient is φ = 320323812.

The previous prime is 321741379. The next prime is 321741463. The reversal of 321741401 is 104147123.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 321741401 - 2²⁶ = 254632537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (321741481) 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, 708455 + ... + 708908.

It is an arithmetic number, because the mean of its divisors is an integer number (80789748).

Almost surely, 2^321741401 is an apocalyptic number.

It is an amenable number.

321741401 is a deficient number, since it is larger than the sum of its proper divisors (1417591).

321741401 is a wasteful number, since it uses less digits than its factorization.

321741401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417590.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 321741401 is about 17937.1514182158. The cubic root of 321741401 is about 685.2288655750.

Adding to 321741401 its reverse (104147123), we get a palindrome (425888524).

The spelling of 321741401 in words is "three hundred twenty-one million, seven hundred forty-one thousand, four hundred one".