305307479 has 2 divisors, whose sum is σ = 305307480. Its totient is φ = 305307478.

The previous prime is 305307473. The next prime is 305307481. The reversal of 305307479 is 974703503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 305307479 - 2⁴ = 305307463 is a prime.

Together with 305307481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305307473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152653739 + 152653740.

It is an arithmetic number, because the mean of its divisors is an integer number (152653740).

Almost surely, 2^305307479 is an apocalyptic number.

305307479 is a deficient number, since it is larger than the sum of its proper divisors (1).

305307479 is an equidigital number, since it uses as much as digits as its factorization.

305307479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 305307479 is about 17473.0500771903. The cubic root of 305307479 is about 673.3576746475.

The spelling of 305307479 in words is "three hundred five million, three hundred seven thousand, four hundred seventy-nine".