307272947 has 2 divisors, whose sum is σ = 307272948. Its totient is φ = 307272946.

The previous prime is 307272941. The next prime is 307272967. The reversal of 307272947 is 749272703.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-307272947 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (307272941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153636473 + 153636474.

It is an arithmetic number, because the mean of its divisors is an integer number (153636474).

Almost surely, 2^307272947 is an apocalyptic number.

307272947 is a deficient number, since it is larger than the sum of its proper divisors (1).

307272947 is an equidigital number, since it uses as much as digits as its factorization.

307272947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 307272947 is about 17529.2026915088. The cubic root of 307272947 is about 674.7995358988.

The spelling of 307272947 in words is "three hundred seven million, two hundred seventy-two thousand, nine hundred forty-seven".