47501893 has 4 divisors (see below), whose sum is σ = 50296140. Its totient is φ = 44707648.

The previous prime is 47501887. The next prime is 47501921. The reversal of 47501893 is 39810574.

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 43652449 + 3849444 = 6607^2 + 1962^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47501893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47501093) 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, 1397098 + ... + 1397131.

It is an arithmetic number, because the mean of its divisors is an integer number (12574035).

Almost surely, 2^47501893 is an apocalyptic number.

It is an amenable number.

47501893 is a deficient number, since it is larger than the sum of its proper divisors (2794247).

47501893 is a wasteful number, since it uses less digits than its factorization.

47501893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794246.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 47501893 is about 6892.1617073310. The cubic root of 47501893 is about 362.1626330889.

The spelling of 47501893 in words is "forty-seven million, five hundred one thousand, eight hundred ninety-three".