47921371 has 2 divisors, whose sum is σ = 47921372. Its totient is φ = 47921370.

The previous prime is 47921359. The next prime is 47921383. The reversal of 47921371 is 17312974.

It is a balanced prime because it is at equal distance from previous prime (47921359) and next prime (47921383).

It is a cyclic number.

It is not a de Polignac number, because 47921371 - 2⁵ = 47921339 is a prime.

It is not a weakly prime, because it can be changed into another prime (47931371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23960685 + 23960686.

It is an arithmetic number, because the mean of its divisors is an integer number (23960686).

Almost surely, 2^47921371 is an apocalyptic number.

47921371 is a deficient number, since it is larger than the sum of its proper divisors (1).

47921371 is an equidigital number, since it uses as much as digits as its factorization.

47921371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 34.

The square root of 47921371 is about 6922.5263452009. The cubic root of 47921371 is about 363.2255679238.

The spelling of 47921371 in words is "forty-seven million, nine hundred twenty-one thousand, three hundred seventy-one".