47313893 has 4 divisors (see below), whose sum is σ = 51615168. Its totient is φ = 43012620.

The previous prime is 47313883. The next prime is 47313923. The reversal of 47313893 is 39831374.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47313893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47313823) 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, 2150621 + ... + 2150642.

It is an arithmetic number, because the mean of its divisors is an integer number (12903792).

Almost surely, 2^47313893 is an apocalyptic number.

It is an amenable number.

47313893 is a deficient number, since it is larger than the sum of its proper divisors (4301275).

47313893 is a wasteful number, since it uses less digits than its factorization.

47313893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301274.

The product of its digits is 54432, while the sum is 38.

The square root of 47313893 is about 6878.5095042458. The cubic root of 47313893 is about 361.6842199026.

The spelling of 47313893 in words is "forty-seven million, three hundred thirteen thousand, eight hundred ninety-three".