15380947 has 2 divisors, whose sum is σ = 15380948. Its totient is φ = 15380946.

The previous prime is 15380941. The next prime is 15380983. The reversal of 15380947 is 74908351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15380947 - 2¹¹ = 15378899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15380941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7690473 + 7690474.

It is an arithmetic number, because the mean of its divisors is an integer number (7690474).

Almost surely, 2^15380947 is an apocalyptic number.

15380947 is a deficient number, since it is larger than the sum of its proper divisors (1).

15380947 is an equidigital number, since it uses as much as digits as its factorization.

15380947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 15380947 is about 3921.8550457660. The cubic root of 15380947 is about 248.6915477583.

The spelling of 15380947 in words is "fifteen million, three hundred eighty thousand, nine hundred forty-seven".