15480947 has 2 divisors, whose sum is σ = 15480948. Its totient is φ = 15480946.

The previous prime is 15480937. The next prime is 15480961. The reversal of 15480947 is 74908451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15480947 - 2⁸ = 15480691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15480947.

It is not a weakly prime, because it can be changed into another prime (15480937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7740473 + 7740474.

It is an arithmetic number, because the mean of its divisors is an integer number (7740474).

Almost surely, 2^15480947 is an apocalyptic number.

15480947 is a deficient number, since it is larger than the sum of its proper divisors (1).

15480947 is an equidigital number, since it uses as much as digits as its factorization.

15480947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 15480947 is about 3934.5834595291. The cubic root of 15480947 is about 249.2293441325.

The spelling of 15480947 in words is "fifteen million, four hundred eighty thousand, nine hundred forty-seven".