47938837 has 4 divisors (see below), whose sum is σ = 48050496. Its totient is φ = 47827180.

The previous prime is 47938823. The next prime is 47938841. The reversal of 47938837 is 73883974.

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-47938837 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 (47938867) 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, 55183 + ... + 56044.

It is an arithmetic number, because the mean of its divisors is an integer number (12012624).

Almost surely, 2^47938837 is an apocalyptic number.

It is an amenable number.

47938837 is a deficient number, since it is larger than the sum of its proper divisors (111659).

47938837 is a wasteful number, since it uses less digits than its factorization.

47938837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111658.

The product of its digits is 1016064, while the sum is 49.

The square root of 47938837 is about 6923.7877639338. The cubic root of 47938837 is about 363.2696910853.

The spelling of 47938837 in words is "forty-seven million, nine hundred thirty-eight thousand, eight hundred thirty-seven".