7923613 has 2 divisors, whose sum is σ = 7923614. Its totient is φ = 7923612.

The previous prime is 7923611. The next prime is 7923623. The reversal of 7923613 is 3163297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7634169 + 289444 = 2763^2 + 538^2 .

It is an emirp because it is prime and its reverse (3163297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7923613 - 2¹ = 7923611 is a prime.

Together with 7923611, it forms a pair of twin primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7⁸ + 9⁶ + 2¹⁵ + 3⁵ + 6² + 1 + 3¹³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7923611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3961806 + 3961807.

It is an arithmetic number, because the mean of its divisors is an integer number (3961807).

Almost surely, 2^7923613 is an apocalyptic number.

It is an amenable number.

7923613 is a deficient number, since it is larger than the sum of its proper divisors (1).

7923613 is an equidigital number, since it uses as much as digits as its factorization.

7923613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 31.

The square root of 7923613 is about 2814.8912945263. The cubic root of 7923613 is about 199.3614048178.

The spelling of 7923613 in words is "seven million, nine hundred twenty-three thousand, six hundred thirteen".