49142687 has 8 divisors (see below), whose sum is σ = 53663232. Its totient is φ = 44631000.

The previous prime is 49142677. The next prime is 49142701. The reversal of 49142687 is 78624194.

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 49142687 - 2¹⁰ = 49141663 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 (49142627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15812 + ... + 18662.

It is an arithmetic number, because the mean of its divisors is an integer number (6707904).

Almost surely, 2^49142687 is an apocalyptic number.

49142687 is a deficient number, since it is larger than the sum of its proper divisors (4520545).

49142687 is a wasteful number, since it uses less digits than its factorization.

49142687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429.

The product of its digits is 96768, while the sum is 41.

The square root of 49142687 is about 7010.1845196828. The cubic root of 49142687 is about 366.2854209046.

The spelling of 49142687 in words is "forty-nine million, one hundred forty-two thousand, six hundred eighty-seven".