49858687 has 4 divisors (see below), whose sum is σ = 52026480. Its totient is φ = 47690896.

The previous prime is 49858661. The next prime is 49858691. The reversal of 49858687 is 78685894.

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 49858687 - 2¹⁹ = 49334399 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 (49858087) 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, 1083862 + ... + 1083907.

It is an arithmetic number, because the mean of its divisors is an integer number (13006620).

Almost surely, 2^49858687 is an apocalyptic number.

49858687 is a deficient number, since it is larger than the sum of its proper divisors (2167793).

49858687 is a wasteful number, since it uses less digits than its factorization.

49858687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167792.

The product of its digits is 3870720, while the sum is 55.

The square root of 49858687 is about 7061.0684035775. The cubic root of 49858687 is about 368.0557546864.

The spelling of 49858687 in words is "forty-nine million, eight hundred fifty-eight thousand, six hundred eighty-seven".