4791623 has 2 divisors, whose sum is σ = 4791624. Its totient is φ = 4791622.

The previous prime is 4791559. The next prime is 4791643. The reversal of 4791623 is 3261974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4791623 - 2⁶ = 4791559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4791623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4791643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2395811 + 2395812.

It is an arithmetic number, because the mean of its divisors is an integer number (2395812).

Almost surely, 2^4791623 is an apocalyptic number.

4791623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4791623 is an equidigital number, since it uses as much as digits as its factorization.

4791623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 4791623 is about 2188.9776152350. The cubic root of 4791623 is about 168.5883448708.

The spelling of 4791623 in words is "four million, seven hundred ninety-one thousand, six hundred twenty-three".