49768987 has 4 divisors (see below), whose sum is σ = 51932880. Its totient is φ = 47605096.

The previous prime is 49768969. The next prime is 49768997. The reversal of 49768987 is 78986794.

It is a happy number.

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 49768987 - 2²³ = 41380379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49768937) 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, 1081912 + ... + 1081957.

It is an arithmetic number, because the mean of its divisors is an integer number (12983220).

Almost surely, 2^49768987 is an apocalyptic number.

49768987 is a deficient number, since it is larger than the sum of its proper divisors (2163893).

49768987 is a wasteful number, since it uses less digits than its factorization.

49768987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163892.

The product of its digits is 6096384, while the sum is 58.

The square root of 49768987 is about 7054.7138141813. The cubic root of 49768987 is about 367.8349010319.

The spelling of 49768987 in words is "forty-nine million, seven hundred sixty-eight thousand, nine hundred eighty-seven".