308648723 has 2 divisors, whose sum is σ = 308648724. Its totient is φ = 308648722.

The previous prime is 308648713. The next prime is 308648729. The reversal of 308648723 is 327846803.

It is a strong prime.

It is an emirp because it is prime and its reverse (327846803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 308648723 - 2¹⁴ = 308632339 is a prime.

It is not a weakly prime, because it can be changed into another prime (308648729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154324361 + 154324362.

It is an arithmetic number, because the mean of its divisors is an integer number (154324362).

Almost surely, 2^308648723 is an apocalyptic number.

308648723 is a deficient number, since it is larger than the sum of its proper divisors (1).

308648723 is an equidigital number, since it uses as much as digits as its factorization.

308648723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 308648723 is about 17568.4012647708. The cubic root of 308648723 is about 675.8051465931.

The spelling of 308648723 in words is "three hundred eight million, six hundred forty-eight thousand, seven hundred twenty-three".