486487621 has 4 divisors (see below), whose sum is σ = 488244172. Its totient is φ = 484731072.

The previous prime is 486487613. The next prime is 486487633. The reversal of 486487621 is 126784684.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114190596 + 372297025 = 10686^2 + 19295^2 .

It is a cyclic number.

It is not a de Polignac number, because 486487621 - 2³ = 486487613 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 (486487121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877860 + ... + 878413.

It is an arithmetic number, because the mean of its divisors is an integer number (122061043).

Almost surely, 2^486487621 is an apocalyptic number.

It is an amenable number.

486487621 is a deficient number, since it is larger than the sum of its proper divisors (1756551).

486487621 is a wasteful number, since it uses less digits than its factorization.

486487621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756550.

The product of its digits is 516096, while the sum is 46.

The square root of 486487621 is about 22056.4643812194. The cubic root of 486487621 is about 786.4852786290.

The spelling of 486487621 in words is "four hundred eighty-six million, four hundred eighty-seven thousand, six hundred twenty-one".