47036987 has 2 divisors, whose sum is σ = 47036988. Its totient is φ = 47036986.

The previous prime is 47036971. The next prime is 47037017. The reversal of 47036987 is 78963074.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47036987 - 2⁴ = 47036971 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 (47036947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23518493 + 23518494.

It is an arithmetic number, because the mean of its divisors is an integer number (23518494).

Almost surely, 2^47036987 is an apocalyptic number.

47036987 is a deficient number, since it is larger than the sum of its proper divisors (1).

47036987 is an equidigital number, since it uses as much as digits as its factorization.

47036987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 47036987 is about 6858.3516241149. The cubic root of 47036987 is about 360.9772496105.

The spelling of 47036987 in words is "forty-seven million, thirty-six thousand, nine hundred eighty-seven".