47972371 has 2 divisors, whose sum is σ = 47972372. Its totient is φ = 47972370.

The previous prime is 47972341. The next prime is 47972389. The reversal of 47972371 is 17327974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47972371 - 2¹³ = 47964179 is a prime.

It is a Chen prime.

It is equal to p_2886619 and since 47972371 and 2886619 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47972311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23986185 + 23986186.

It is an arithmetic number, because the mean of its divisors is an integer number (23986186).

Almost surely, 2^47972371 is an apocalyptic number.

47972371 is a deficient number, since it is larger than the sum of its proper divisors (1).

47972371 is an equidigital number, since it uses as much as digits as its factorization.

47972371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 40.

The square root of 47972371 is about 6926.2089919378. The cubic root of 47972371 is about 363.3543757043.

The spelling of 47972371 in words is "forty-seven million, nine hundred seventy-two thousand, three hundred seventy-one".