49987904 has 28 divisors (see below), whose sum is σ = 101073204. Its totient is φ = 24520704.

The previous prime is 49987891. The next prime is 49987907. The reversal of 49987904 is 40978994.

It can be written as a sum of positive squares in 2 ways, for example, as 39438400 + 10549504 = 6280^2 + 3248^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49987907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3977 + ... + 10760.

Almost surely, 2^49987904 is an apocalyptic number.

It is an amenable number.

49987904 is an abundant number, since it is smaller than the sum of its proper divisors (51085300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49987904 is a wasteful number, since it uses less digits than its factorization.

49987904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14802 (or 14792 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 49987904 is about 7070.2124437672. The cubic root of 49987904 is about 368.3734394381.

The spelling of 49987904 in words is "forty-nine million, nine hundred eighty-seven thousand, nine hundred four".