485021661 has 8 divisors (see below), whose sum is σ = 655804224. Its totient is φ = 318793440.

The previous prime is 485021657. The next prime is 485021699. The reversal of 485021661 is 166120584.

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

It is not a de Polignac number, because 485021661 - 2² = 485021657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485021161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138336 + ... + 1138761.

It is an arithmetic number, because the mean of its divisors is an integer number (81975528).

Almost surely, 2^485021661 is an apocalyptic number.

It is an amenable number.

485021661 is a deficient number, since it is larger than the sum of its proper divisors (170782563).

485021661 is a wasteful number, since it uses less digits than its factorization.

485021661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277171.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 485021661 is about 22023.2073277259. The cubic root of 485021661 is about 785.6944972946.

The spelling of 485021661 in words is "four hundred eighty-five million, twenty-one thousand, six hundred sixty-one".