47247091 has 4 divisors (see below), whose sum is σ = 49733800. Its totient is φ = 44760384.

The previous prime is 47247089. The next prime is 47247107. The reversal of 47247091 is 19074274.

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 47247091 - 2¹ = 47247089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47247191) 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, 1243326 + ... + 1243363.

It is an arithmetic number, because the mean of its divisors is an integer number (12433450).

Almost surely, 2^47247091 is an apocalyptic number.

47247091 is a deficient number, since it is larger than the sum of its proper divisors (2486709).

47247091 is a wasteful number, since it uses less digits than its factorization.

47247091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486708.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 47247091 is about 6873.6519405626. The cubic root of 47247091 is about 361.5139203165.

The spelling of 47247091 in words is "forty-seven million, two hundred forty-seven thousand, ninety-one".