5021686 has 4 divisors (see below), whose sum is σ = 7532532. Its totient is φ = 2510842.

The previous prime is 5021683. The next prime is 5021693. The reversal of 5021686 is 6861205.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5021683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255420 + ... + 1255423.

It is an arithmetic number, because the mean of its divisors is an integer number (1883133).

Almost surely, 2^5021686 is an apocalyptic number.

5021686 is a deficient number, since it is larger than the sum of its proper divisors (2510846).

5021686 is a wasteful number, since it uses less digits than its factorization.

5021686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510845.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 5021686 is about 2240.9118679680. The cubic root of 5021686 is about 171.2444550392.

It can be divided in two parts, 50 and 21686, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 5021686 in words is "five million, twenty-one thousand, six hundred eighty-six".