15492647 has 2 divisors, whose sum is σ = 15492648. Its totient is φ = 15492646.

The previous prime is 15492623. The next prime is 15492649. The reversal of 15492647 is 74629451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15492647 - 2¹⁸ = 15230503 is a prime.

It is a super-2 number, since 2×15492647² = 480044222133218, which contains 22 as substring.

Together with 15492649, 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 15492647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15492649) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7746323 + 7746324.

It is an arithmetic number, because the mean of its divisors is an integer number (7746324).

Almost surely, 2^15492647 is an apocalyptic number.

15492647 is a deficient number, since it is larger than the sum of its proper divisors (1).

15492647 is an equidigital number, since it uses as much as digits as its factorization.

15492647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 38.

The square root of 15492647 is about 3936.0699942963. The cubic root of 15492647 is about 249.2921148195.

The spelling of 15492647 in words is "fifteen million, four hundred ninety-two thousand, six hundred forty-seven".