5012821 has 4 divisors (see below), whose sum is σ = 5468544. Its totient is φ = 4557100.

The previous prime is 5012803. The next prime is 5012831. The reversal of 5012821 is 1282105.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5012821 is a prime.

It is a Duffinian number.

5012821 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5012831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227845 + ... + 227866.

It is an arithmetic number, because the mean of its divisors is an integer number (1367136).

Almost surely, 2^5012821 is an apocalyptic number.

It is an amenable number.

5012821 is a deficient number, since it is larger than the sum of its proper divisors (455723).

5012821 is a wasteful number, since it uses less digits than its factorization.

5012821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455722.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 5012821 is about 2238.9330048039. The cubic root of 5012821 is about 171.1436272639.

Adding to 5012821 its reverse (1282105), we get a palindrome (6294926).

The spelling of 5012821 in words is "five million, twelve thousand, eight hundred twenty-one".