504087021 has 12 divisors (see below), whose sum is σ = 759783648. Its totient is φ = 321446664.

The previous prime is 504087013. The next prime is 504087037. The reversal of 504087021 is 120780405.

It is not a de Polignac number, because 504087021 - 2³ = 504087013 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504087041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1217395 + ... + 1217808.

It is an arithmetic number, because the mean of its divisors is an integer number (63315304).

Almost surely, 2^504087021 is an apocalyptic number.

It is an amenable number.

504087021 is a deficient number, since it is larger than the sum of its proper divisors (255696627).

504087021 is a wasteful number, since it uses less digits than its factorization.

504087021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435232 (or 2435229 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 504087021 is about 22451.8823487030. The cubic root of 504087021 is about 795.8572407341.

The spelling of 504087021 in words is "five hundred four million, eighty-seven thousand, twenty-one".