47311793 has 4 divisors (see below), whose sum is σ = 47613300. Its totient is φ = 47010288.

The previous prime is 47311787. The next prime is 47311807. The reversal of 47311793 is 39711374.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24720784 + 22591009 = 4972^2 + 4753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47311793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47311753) 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, 150518 + ... + 150831.

It is an arithmetic number, because the mean of its divisors is an integer number (11903325).

Almost surely, 2^47311793 is an apocalyptic number.

It is an amenable number.

47311793 is a deficient number, since it is larger than the sum of its proper divisors (301507).

47311793 is a wasteful number, since it uses less digits than its factorization.

47311793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301506.

The product of its digits is 15876, while the sum is 35.

The square root of 47311793 is about 6878.3568532027. The cubic root of 47311793 is about 361.6788687746.

The spelling of 47311793 in words is "forty-seven million, three hundred eleven thousand, seven hundred ninety-three".