49989963 has 4 divisors (see below), whose sum is σ = 66653288. Its totient is φ = 33326640.

The previous prime is 49989883. The next prime is 49989967. The reversal of 49989963 is 36998994.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 49989963 - 2¹² = 49985867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49989967) 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, 8331658 + ... + 8331663.

It is an arithmetic number, because the mean of its divisors is an integer number (16663322).

Almost surely, 2^49989963 is an apocalyptic number.

49989963 is a deficient number, since it is larger than the sum of its proper divisors (16663325).

49989963 is a wasteful number, since it uses less digits than its factorization.

49989963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16663324.

The product of its digits is 3779136, while the sum is 57.

The square root of 49989963 is about 7070.3580531682. The cubic root of 49989963 is about 368.3784971316.

The spelling of 49989963 in words is "forty-nine million, nine hundred eighty-nine thousand, nine hundred sixty-three".