63749701 has 2 divisors, whose sum is σ = 63749702. Its totient is φ = 63749700.

The previous prime is 63749681. The next prime is 63749723. The reversal of 63749701 is 10794736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47541025 + 16208676 = 6895^2 + 4026^2 .

It is a cyclic number.

It is not a de Polignac number, because 63749701 - 2⁵ = 63749669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63749771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31874850 + 31874851.

It is an arithmetic number, because the mean of its divisors is an integer number (31874851).

Almost surely, 2^63749701 is an apocalyptic number.

It is an amenable number.

63749701 is a deficient number, since it is larger than the sum of its proper divisors (1).

63749701 is an equidigital number, since it uses as much as digits as its factorization.

63749701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 63749701 is about 7984.3409872074. The cubic root of 63749701 is about 399.4778624776.

The spelling of 63749701 in words is "sixty-three million, seven hundred forty-nine thousand, seven hundred one".