321642674 has 4 divisors (see below), whose sum is σ = 482464014. Its totient is φ = 160821336.

The previous prime is 321642653. The next prime is 321642721. The reversal of 321642674 is 476246123.

321642674 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 208369225 + 113273449 = 14435^2 + 10643^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80410667 + ... + 80410670.

Almost surely, 2^321642674 is an apocalyptic number.

321642674 is a deficient number, since it is larger than the sum of its proper divisors (160821340).

321642674 is a wasteful number, since it uses less digits than its factorization.

321642674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160821339.

The product of its digits is 48384, while the sum is 35.

The square root of 321642674 is about 17934.3991814613. The cubic root of 321642674 is about 685.1587704502.

Adding to 321642674 its reverse (476246123), we get a palindrome (797888797).

The spelling of 321642674 in words is "three hundred twenty-one million, six hundred forty-two thousand, six hundred seventy-four".