321713127 has 40 divisors (see below), whose sum is σ = 494127216. Its totient is φ = 208510848.

The previous prime is 321713107. The next prime is 321713129. The reversal of 321713127 is 721317123.

It is not a de Polignac number, because 321713127 - 2⁸ = 321712871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 321713127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321713129) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 587868 + ... + 588414.

Almost surely, 2^321713127 is an apocalyptic number.

321713127 is a deficient number, since it is larger than the sum of its proper divisors (172414089).

321713127 is a wasteful number, since it uses less digits than its factorization.

321713127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 740 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 321713127 is about 17936.3632601484. The cubic root of 321713127 is about 685.2087927997.

The spelling of 321713127 in words is "three hundred twenty-one million, seven hundred thirteen thousand, one hundred twenty-seven".