63741949 has 2 divisors, whose sum is σ = 63741950. Its totient is φ = 63741948.

The previous prime is 63741943. The next prime is 63741961. The reversal of 63741949 is 94914736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54243225 + 9498724 = 7365^2 + 3082^2 .

It is a cyclic number.

It is not a de Polignac number, because 63741949 - 2¹³ = 63733757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63741943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31870974 + 31870975.

It is an arithmetic number, because the mean of its divisors is an integer number (31870975).

Almost surely, 2^63741949 is an apocalyptic number.

It is an amenable number.

63741949 is a deficient number, since it is larger than the sum of its proper divisors (1).

63741949 is an equidigital number, since it uses as much as digits as its factorization.

63741949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 63741949 is about 7983.8555222399. The cubic root of 63741949 is about 399.4616695759.

The spelling of 63741949 in words is "sixty-three million, seven hundred forty-one thousand, nine hundred forty-nine".