5072321 has 4 divisors (see below), whose sum is σ = 5122644. Its totient is φ = 5022000.

The previous prime is 5072299. The next prime is 5072329. The reversal of 5072321 is 1232705.

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 3010225 + 2062096 = 1735^2 + 1436^2 .

It is a cyclic number.

It is not a de Polignac number, because 5072321 - 2¹⁴ = 5055937 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5072293 and 5072302.

It is not an unprimeable number, because it can be changed into a prime (5072329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25010 + ... + 25211.

It is an arithmetic number, because the mean of its divisors is an integer number (1280661).

Almost surely, 2^5072321 is an apocalyptic number.

It is an amenable number.

5072321 is a deficient number, since it is larger than the sum of its proper divisors (50323).

5072321 is a wasteful number, since it uses less digits than its factorization.

5072321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50322.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 5072321 is about 2252.1813870113. The cubic root of 5072321 is about 171.8180991149.

The spelling of 5072321 in words is "five million, seventy-two thousand, three hundred twenty-one".