7023913 has 4 divisors (see below), whose sum is σ = 7564228. Its totient is φ = 6483600.

The previous prime is 7023881. The next prime is 7023923. The reversal of 7023913 is 3193207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3193207 = 167 ⋅19121.

It can be written as a sum of positive squares in 2 ways, for example, as 3794704 + 3229209 = 1948^2 + 1797^2 .

It is a cyclic number.

It is not a de Polignac number, because 7023913 - 2⁵ = 7023881 is a prime.

It is a super-4 number, since 4×7023913⁴ (a number of 28 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7023923) 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, 270138 + ... + 270163.

It is an arithmetic number, because the mean of its divisors is an integer number (1891057).

Almost surely, 2^7023913 is an apocalyptic number.

It is an amenable number.

7023913 is a deficient number, since it is larger than the sum of its proper divisors (540315).

7023913 is a wasteful number, since it uses less digits than its factorization.

7023913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540314.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 7023913 is about 2650.2665903641. The cubic root of 7023913 is about 191.5106989094.

The spelling of 7023913 in words is "seven million, twenty-three thousand, nine hundred thirteen".