87500047 has 8 divisors (see below), whose sum is σ = 92003040. Its totient is φ = 83096160.

The previous prime is 87500029. The next prime is 87500053. The reversal of 87500047 is 74000578.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87500047 - 2¹¹ = 87497999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87499991 and 87500018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87500087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22963 + ... + 26500.

It is an arithmetic number, because the mean of its divisors is an integer number (11500380).

Almost surely, 2^87500047 is an apocalyptic number.

87500047 is a deficient number, since it is larger than the sum of its proper divisors (4502993).

87500047 is a wasteful number, since it uses less digits than its factorization.

87500047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49553.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 87500047 is about 9354.1459791902. The cubic root of 87500047 is about 443.9520803598.

The spelling of 87500047 in words is "eighty-seven million, five hundred thousand, forty-seven".