7997623 has 2 divisors, whose sum is σ = 7997624. Its totient is φ = 7997622.

The previous prime is 7997621. The next prime is 7997663. The reversal of 7997623 is 3267997.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7997623 - 2¹ = 7997621 is a prime.

Together with 7997621, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 7⁵ + 9³ + 9⁵ + 7⁸ + 6² + 2²¹ + 3¹⁰ .

It is a self number, because there is not a number n which added to its sum of digits gives 7997623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7997621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3998811 + 3998812.

It is an arithmetic number, because the mean of its divisors is an integer number (3998812).

Almost surely, 2^7997623 is an apocalyptic number.

7997623 is a deficient number, since it is larger than the sum of its proper divisors (1).

7997623 is an equidigital number, since it uses as much as digits as its factorization.

7997623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 43.

The square root of 7997623 is about 2828.0068953240. The cubic root of 7997623 is about 199.9801897045.

The spelling of 7997623 in words is "seven million, nine hundred ninety-seven thousand, six hundred twenty-three".