49994987 has 4 divisors (see below), whose sum is σ = 57137136. Its totient is φ = 42852840.

The previous prime is 49994983. The next prime is 49994993. The reversal of 49994987 is 78949994.

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 49994987 - 2² = 49994983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49994983) 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, 3571064 + ... + 3571077.

It is an arithmetic number, because the mean of its divisors is an integer number (14284284).

Almost surely, 2^49994987 is an apocalyptic number.

49994987 is a deficient number, since it is larger than the sum of its proper divisors (7142149).

49994987 is an equidigital number, since it uses as much as digits as its factorization.

49994987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7142148.

The product of its digits is 5878656, while the sum is 59.

The square root of 49994987 is about 7070.7133303508. The cubic root of 49994987 is about 368.3908374193.

The spelling of 49994987 in words is "forty-nine million, nine hundred ninety-four thousand, nine hundred eighty-seven".