15047427 has 4 divisors (see below), whose sum is σ = 20063240. Its totient is φ = 10031616.

The previous prime is 15047407. The next prime is 15047441. The reversal of 15047427 is 72474051.

15047427 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15047427 - 2¹⁰ = 15046403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15047394 and 15047403.

It is not an unprimeable number, because it can be changed into a prime (15047407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2507902 + ... + 2507907.

It is an arithmetic number, because the mean of its divisors is an integer number (5015810).

Almost surely, 2^15047427 is an apocalyptic number.

15047427 is a deficient number, since it is larger than the sum of its proper divisors (5015813).

15047427 is an equidigital number, since it uses as much as digits as its factorization.

15047427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015812.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 15047427 is about 3879.1013134488. The cubic root of 15047427 is about 246.8808562837.

The spelling of 15047427 in words is "fifteen million, forty-seven thousand, four hundred twenty-seven".