486221997 has 4 divisors (see below), whose sum is σ = 648296000. Its totient is φ = 324147996.

The previous prime is 486221977. The next prime is 486222007. The reversal of 486221997 is 799122684.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 486221997 - 2¹¹ = 486219949 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 (486221977) 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 3 ways as a sum of consecutive naturals, for example, 81036997 + ... + 81037002.

It is an arithmetic number, because the mean of its divisors is an integer number (162074000).

Almost surely, 2^486221997 is an apocalyptic number.

It is an amenable number.

486221997 is a deficient number, since it is larger than the sum of its proper divisors (162074003).

486221997 is a wasteful number, since it uses less digits than its factorization.

486221997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162074002.

The product of its digits is 435456, while the sum is 48.

The square root of 486221997 is about 22050.4421044114. The cubic root of 486221997 is about 786.3421113007.

The spelling of 486221997 in words is "four hundred eighty-six million, two hundred twenty-one thousand, nine hundred ninety-seven".