5721319 has 4 divisors (see below), whose sum is σ = 5970096. Its totient is φ = 5472544.

The previous prime is 5721307. The next prime is 5721343. The reversal of 5721319 is 9131275.

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

It is a cyclic number.

It is not a de Polignac number, because 5721319 - 2⁹ = 5720807 is a prime.

It is a super-2 number, since 2×5721319² = 65466982199522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124354 + ... + 124399.

It is an arithmetic number, because the mean of its divisors is an integer number (1492524).

Almost surely, 2^5721319 is an apocalyptic number.

5721319 is a deficient number, since it is larger than the sum of its proper divisors (248777).

5721319 is a wasteful number, since it uses less digits than its factorization.

5721319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248776.

The product of its digits is 1890, while the sum is 28.

The square root of 5721319 is about 2391.9278835283. The cubic root of 5721319 is about 178.8540262011.

It can be divided in two parts, 572 and 1319, that added together give a triangular number (1891 = T₆₁).

The spelling of 5721319 in words is "five million, seven hundred twenty-one thousand, three hundred nineteen".