15472987 has 2 divisors, whose sum is σ = 15472988. Its totient is φ = 15472986.

The previous prime is 15472981. The next prime is 15473021. The reversal of 15472987 is 78927451.

It is a weak prime.

It is an emirp because it is prime and its reverse (78927451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15472987 - 2¹⁵ = 15440219 is a prime.

It is not a weakly prime, because it can be changed into another prime (15472981) 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, 7736493 + 7736494.

It is an arithmetic number, because the mean of its divisors is an integer number (7736494).

Almost surely, 2^15472987 is an apocalyptic number.

15472987 is a deficient number, since it is larger than the sum of its proper divisors (1).

15472987 is an equidigital number, since it uses as much as digits as its factorization.

15472987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 43.

The square root of 15472987 is about 3933.5717865574. The cubic root of 15472987 is about 249.1866205253.

The spelling of 15472987 in words is "fifteen million, four hundred seventy-two thousand, nine hundred eighty-seven".