47945743 has 4 divisors (see below), whose sum is σ = 48602608. Its totient is φ = 47288880.

The previous prime is 47945717. The next prime is 47945749. The reversal of 47945743 is 34754974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34754974 = 2 ⋅17377487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47945743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47945743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47945749) 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, 328323 + ... + 328468.

It is an arithmetic number, because the mean of its divisors is an integer number (12150652).

Almost surely, 2^47945743 is an apocalyptic number.

47945743 is a deficient number, since it is larger than the sum of its proper divisors (656865).

47945743 is an equidigital number, since it uses as much as digits as its factorization.

47945743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656864.

The product of its digits is 423360, while the sum is 43.

The square root of 47945743 is about 6924.2864614341. The cubic root of 47945743 is about 363.2871342843.

The spelling of 47945743 in words is "forty-seven million, nine hundred forty-five thousand, seven hundred forty-three".