48991963 has 2 divisors, whose sum is σ = 48991964. Its totient is φ = 48991962.

The previous prime is 48991949. The next prime is 48992003. The reversal of 48991963 is 36919984.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48991963 is a prime.

It is not a weakly prime, because it can be changed into another prime (48994963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24495981 + 24495982.

It is an arithmetic number, because the mean of its divisors is an integer number (24495982).

Almost surely, 2^48991963 is an apocalyptic number.

48991963 is a deficient number, since it is larger than the sum of its proper divisors (1).

48991963 is an equidigital number, since it uses as much as digits as its factorization.

48991963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 49.

The square root of 48991963 is about 6999.4259050296. The cubic root of 48991963 is about 365.9105632145.

The spelling of 48991963 in words is "forty-eight million, nine hundred ninety-one thousand, nine hundred sixty-three".