47645315 has 4 divisors (see below), whose sum is σ = 57174384. Its totient is φ = 38116248.

The previous prime is 47645309. The next prime is 47645327. The reversal of 47645315 is 51354674.

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

It is a cyclic number.

It is not a de Polignac number, because 47645315 - 2²² = 43451011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4764527 + ... + 4764536.

It is an arithmetic number, because the mean of its divisors is an integer number (14293596).

Almost surely, 2^47645315 is an apocalyptic number.

47645315 is a deficient number, since it is larger than the sum of its proper divisors (9529069).

47645315 is an equidigital number, since it uses as much as digits as its factorization.

47645315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9529068.

The product of its digits is 50400, while the sum is 35.

The square root of 47645315 is about 6902.5585835978. The cubic root of 47645315 is about 362.5267582309.

Adding to 47645315 its reverse (51354674), we get a palindrome (98999989).

The spelling of 47645315 in words is "forty-seven million, six hundred forty-five thousand, three hundred fifteen".