47291243 has 4 divisors (see below), whose sum is σ = 49347408. Its totient is φ = 45235080.

The previous prime is 47291239. The next prime is 47291249. The reversal of 47291243 is 34219274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34219274 = 2 ⋅17109637.

It is a cyclic number.

It is not a de Polignac number, because 47291243 - 2² = 47291239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47291249) 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, 1028048 + ... + 1028093.

It is an arithmetic number, because the mean of its divisors is an integer number (12336852).

Almost surely, 2^47291243 is an apocalyptic number.

47291243 is a deficient number, since it is larger than the sum of its proper divisors (2056165).

47291243 is a wasteful number, since it uses less digits than its factorization.

47291243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056164.

The product of its digits is 12096, while the sum is 32.

The square root of 47291243 is about 6876.8628748871. The cubic root of 47291243 is about 361.6264958061.

The spelling of 47291243 in words is "forty-seven million, two hundred ninety-one thousand, two hundred forty-three".