321677671 has 4 divisors (see below), whose sum is σ = 367631632. Its totient is φ = 275723712.

The previous prime is 321677663. The next prime is 321677683. The reversal of 321677671 is 176776123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321677671 - 2³ = 321677663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321677171) 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, 22976970 + ... + 22976983.

It is an arithmetic number, because the mean of its divisors is an integer number (91907908).

Almost surely, 2^321677671 is an apocalyptic number.

321677671 is a deficient number, since it is larger than the sum of its proper divisors (45953961).

321677671 is an equidigital number, since it uses as much as digits as its factorization.

321677671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45953960.

The product of its digits is 74088, while the sum is 40.

The square root of 321677671 is about 17935.3748497209. The cubic root of 321677671 is about 685.1836195905.

The spelling of 321677671 in words is "three hundred twenty-one million, six hundred seventy-seven thousand, six hundred seventy-one".