307448047 has 2 divisors, whose sum is σ = 307448048. Its totient is φ = 307448046.

The previous prime is 307448033. The next prime is 307448051. The reversal of 307448047 is 740844703.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 307448047 - 2¹⁵ = 307415279 is a prime.

It is a super-2 number, since 2×307448047² = 189048603208228418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 307447997 and 307448015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (307448017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153724023 + 153724024.

It is an arithmetic number, because the mean of its divisors is an integer number (153724024).

Almost surely, 2^307448047 is an apocalyptic number.

307448047 is a deficient number, since it is larger than the sum of its proper divisors (1).

307448047 is an equidigital number, since it uses as much as digits as its factorization.

307448047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 307448047 is about 17534.1965028341. The cubic root of 307448047 is about 674.9276901050.

The spelling of 307448047 in words is "three hundred seven million, four hundred forty-eight thousand, forty-seven".