47800087 has 4 divisors (see below), whose sum is σ = 47937400. Its totient is φ = 47662776.

The previous prime is 47800079. The next prime is 47800099. The reversal of 47800087 is 78000874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47800087 - 2³ = 47800079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47800007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68133 + ... + 68830.

It is an arithmetic number, because the mean of its divisors is an integer number (11984350).

Almost surely, 2^47800087 is an apocalyptic number.

47800087 is a deficient number, since it is larger than the sum of its proper divisors (137313).

47800087 is a wasteful number, since it uses less digits than its factorization.

47800087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137312.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 47800087 is about 6913.7606987804. The cubic root of 47800087 is about 362.9188803499.

The spelling of 47800087 in words is "forty-seven million, eight hundred thousand, eighty-seven".