487621823 has 16 divisors (see below), whose sum is σ = 539896896. Its totient is φ = 437633280.

The previous prime is 487621817. The next prime is 487621867. The reversal of 487621823 is 328126784.

It is a cyclic number.

It is not a de Polignac number, because 487621823 - 2¹² = 487617727 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487623823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63761 + ... + 70997.

It is an arithmetic number, because the mean of its divisors is an integer number (33743556).

Almost surely, 2^487621823 is an apocalyptic number.

487621823 is a deficient number, since it is larger than the sum of its proper divisors (52275073).

487621823 is a wasteful number, since it uses less digits than its factorization.

487621823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7394.

The product of its digits is 129024, while the sum is 41.

The square root of 487621823 is about 22082.1607411956. The cubic root of 487621823 is about 787.0960107439.

The spelling of 487621823 in words is "four hundred eighty-seven million, six hundred twenty-one thousand, eight hundred twenty-three".