495621321 has 8 divisors (see below), whose sum is σ = 711661440. Its totient is φ = 304997712.

The previous prime is 495621317. The next prime is 495621341. The reversal of 495621321 is 123126594.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 495621321 - 2² = 495621317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (495621341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6354081 + ... + 6354158.

It is an arithmetic number, because the mean of its divisors is an integer number (88957680).

Almost surely, 2^495621321 is an apocalyptic number.

It is an amenable number.

495621321 is a deficient number, since it is larger than the sum of its proper divisors (216040119).

495621321 is a wasteful number, since it uses less digits than its factorization.

495621321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12708255.

The product of its digits is 12960, while the sum is 33.

The square root of 495621321 is about 22262.5542335106. The cubic root of 495621321 is about 791.3768230088.

The spelling of 495621321 in words is "four hundred ninety-five million, six hundred twenty-one thousand, three hundred twenty-one".