7421713 has 4 divisors (see below), whose sum is σ = 7992628. Its totient is φ = 6850800.

The previous prime is 7421693. The next prime is 7421717. The reversal of 7421713 is 3171247.

It is a happy number.

7421713 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3171247 = 367 ⋅8641.

It can be written as a sum of positive squares in 2 ways, for example, as 3932289 + 3489424 = 1983^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 7421713 - 2⁵ = 7421681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7421717) 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, 285438 + ... + 285463.

It is an arithmetic number, because the mean of its divisors is an integer number (1998157).

Almost surely, 2^7421713 is an apocalyptic number.

It is an amenable number.

7421713 is a deficient number, since it is larger than the sum of its proper divisors (570915).

7421713 is a wasteful number, since it uses less digits than its factorization.

7421713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570914.

The product of its digits is 1176, while the sum is 25.

The square root of 7421713 is about 2724.2821072716. The cubic root of 7421713 is about 195.0599246029.

The spelling of 7421713 in words is "seven million, four hundred twenty-one thousand, seven hundred thirteen".