47038987 has 2 divisors, whose sum is σ = 47038988. Its totient is φ = 47038986.

The previous prime is 47038969. The next prime is 47038993. The reversal of 47038987 is 78983074.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47038987 - 2¹¹ = 47036939 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 (47038787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23519493 + 23519494.

It is an arithmetic number, because the mean of its divisors is an integer number (23519494).

Almost surely, 2^47038987 is an apocalyptic number.

47038987 is a deficient number, since it is larger than the sum of its proper divisors (1).

47038987 is an equidigital number, since it uses as much as digits as its factorization.

47038987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 47038987 is about 6858.4974301956. The cubic root of 47038987 is about 360.9823657564.

The spelling of 47038987 in words is "forty-seven million, thirty-eight thousand, nine hundred eighty-seven".