47007987 has 16 divisors (see below), whose sum is σ = 69070848. Its totient is φ = 28254240.

The previous prime is 47007971. The next prime is 47008001. The reversal of 47007987 is 78970074.

It is not a de Polignac number, because 47007987 - 2⁴ = 47007971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47007967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12339 + ... + 15692.

It is an arithmetic number, because the mean of its divisors is an integer number (4316928).

Almost surely, 2^47007987 is an apocalyptic number.

47007987 is a deficient number, since it is larger than the sum of its proper divisors (22062861).

47007987 is a wasteful number, since it uses less digits than its factorization.

47007987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28090.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 47007987 is about 6856.2370874992. The cubic root of 47007987 is about 360.9030491921.

The spelling of 47007987 in words is "forty-seven million, seven thousand, nine hundred eighty-seven".