15472487 has 2 divisors, whose sum is σ = 15472488. Its totient is φ = 15472486.

The previous prime is 15472481. The next prime is 15472489. The reversal of 15472487 is 78427451.

It is a strong prime.

It is an emirp because it is prime and its reverse (78427451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15472487 is a prime.

Together with 15472489, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15472487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15472481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7736243 + 7736244.

It is an arithmetic number, because the mean of its divisors is an integer number (7736244).

Almost surely, 2^15472487 is an apocalyptic number.

15472487 is a deficient number, since it is larger than the sum of its proper divisors (1).

15472487 is an equidigital number, since it uses as much as digits as its factorization.

15472487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62720, while the sum is 38.

The square root of 15472487 is about 3933.5082305748. The cubic root of 15472487 is about 249.1839363926.

The spelling of 15472487 in words is "fifteen million, four hundred seventy-two thousand, four hundred eighty-seven".