49767987 has 6 divisors (see below), whose sum is σ = 66373612. Its totient is φ = 33170512.

The previous prime is 49767967. The next prime is 49768013. The reversal of 49767987 is 78976794.

It is not a de Polignac number, because 49767987 - 2¹¹ = 49765939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49767967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10183 + ... + 14255.

Almost surely, 2^49767987 is an apocalyptic number.

49767987 is a deficient number, since it is larger than the sum of its proper divisors (16605625).

49767987 is an frugal number, since it uses more digits than its factorization.

49767987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8149 (or 4076 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 57.

The square root of 49767987 is about 7054.6429392280. The cubic root of 49767987 is about 367.8324374002.

The spelling of 49767987 in words is "forty-nine million, seven hundred sixty-seven thousand, nine hundred eighty-seven".