50987647 has 8 divisors (see below), whose sum is σ = 51836400. Its totient is φ = 50144640.

The previous prime is 50987633. The next prime is 50987669. The reversal of 50987647 is 74678905.

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 50987647 - 2¹⁵ = 50954879 is a prime.

It is a Duffinian number.

50987647 is a modest number, since divided by 7647 gives 5098 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 50987597 and 50987606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50981647) 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, 18729 + ... + 21277.

It is an arithmetic number, because the mean of its divisors is an integer number (6479550).

Almost surely, 2^50987647 is an apocalyptic number.

50987647 is a deficient number, since it is larger than the sum of its proper divisors (848753).

50987647 is a wasteful number, since it uses less digits than its factorization.

50987647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 50987647 is about 7140.5634931705. The cubic root of 50987647 is about 370.8130331802.

The spelling of 50987647 in words is "fifty million, nine hundred eighty-seven thousand, six hundred forty-seven".