47836387 has 2 divisors, whose sum is σ = 47836388. Its totient is φ = 47836386.

The previous prime is 47836337. The next prime is 47836409. The reversal of 47836387 is 78363874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47836387 - 2¹⁵ = 47803619 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (47836307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23918193 + 23918194.

It is an arithmetic number, because the mean of its divisors is an integer number (23918194).

Almost surely, 2^47836387 is an apocalyptic number.

47836387 is a deficient number, since it is larger than the sum of its proper divisors (1).

47836387 is an equidigital number, since it uses as much as digits as its factorization.

47836387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 46.

The square root of 47836387 is about 6916.3853999036. The cubic root of 47836387 is about 363.0107255240.

The spelling of 47836387 in words is "forty-seven million, eight hundred thirty-six thousand, three hundred eighty-seven".