662052321 has 24 divisors (see below), whose sum is σ = 1150435520. Its totient is φ = 358403616.

The previous prime is 662052319. The next prime is 662052331. The reversal of 662052321 is 123250266.

662052321 is a `hidden beast` number, since 6 + 620 + 5 + 2 + 32 + 1 = 666.

It is not a de Polignac number, because 662052321 - 2¹ = 662052319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662052331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275350 + ... + 277743.

Almost surely, 2^662052321 is an apocalyptic number.

It is an amenable number.

662052321 is a deficient number, since it is larger than the sum of its proper divisors (488383199).

662052321 is a wasteful number, since it uses less digits than its factorization.

662052321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553125 (or 553122 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 662052321 is about 25730.3773971545. The cubic root of 662052321 is about 871.5602955470.

The spelling of 662052321 in words is "six hundred sixty-two million, fifty-two thousand, three hundred twenty-one".