7288473947 has 2 divisors, whose sum is σ = 7288473948. Its totient is φ = 7288473946.

The previous prime is 7288473943. The next prime is 7288473961. The reversal of 7288473947 is 7493748827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7288473947 - 2² = 7288473943 is a prime.

It is not a weakly prime, because it can be changed into another prime (7288473943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3644236973 + 3644236974.

It is an arithmetic number, because the mean of its divisors is an integer number (3644236974).

Almost surely, 2^7288473947 is an apocalyptic number.

7288473947 is a deficient number, since it is larger than the sum of its proper divisors (1).

7288473947 is an equidigital number, since it uses as much as digits as its factorization.

7288473947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18966528, while the sum is 59.

The square root of 7288473947 is about 85372.5596840109. The cubic root of 7288473947 is about 1938.8559119355.

The spelling of 7288473947 in words is "seven billion, two hundred eighty-eight million, four hundred seventy-three thousand, nine hundred forty-seven".