5340721 has 3 divisors (see below), whose sum is σ = 5343033.
Its totient is φ = 5338410.
The previous prime is 5340707. The next prime is 5340743. The reversal of 5340721 is 1270435.
The square root of 5340721 is 2311.
It is a perfect power (a square), and thus also a powerful number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is not a de Polignac number, because 5340721 - 25 = 5340689 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 5340692 and 5340701.
It is not an unprimeable number, because it can be changed into a prime (5340781) by changing a digit.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1156 + ... + 3466.
It is an arithmetic number, because the mean of its divisors is an integer number (1781011).
Almost surely, 25340721 is an apocalyptic number.
5340721 is the 2311-st square number.
5340721 is the 1156-th centered octagonal number.
It is an amenable number.
5340721 is a deficient number, since it is larger than the sum of its proper divisors (2312).
5340721 is an frugal number, since it uses more digits than its factorization.
5340721 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4622 (or 2311 counting only the distinct ones).
The product of its (nonzero) digits is 840, while the sum is 22.
The cubic root of 5340721 is about 174.7967272435.
The spelling of 5340721 in words is "five million, three hundred forty thousand, seven hundred twenty-one".