63437953 has 2 divisors, whose sum is σ = 63437954. Its totient is φ = 63437952.

The previous prime is 63437951. The next prime is 63437963. The reversal of 63437953 is 35973436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60575089 + 2862864 = 7783^2 + 1692^2 .

It is a cyclic number.

It is not a de Polignac number, because 63437953 - 2¹ = 63437951 is a prime.

Together with 63437951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63437951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31718976 + 31718977.

It is an arithmetic number, because the mean of its divisors is an integer number (31718977).

Almost surely, 2^63437953 is an apocalyptic number.

It is an amenable number.

63437953 is a deficient number, since it is larger than the sum of its proper divisors (1).

63437953 is an equidigital number, since it uses as much as digits as its factorization.

63437953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 40.

The square root of 63437953 is about 7964.7945987326. The cubic root of 63437953 is about 398.8256242281.

The spelling of 63437953 in words is "sixty-three million, four hundred thirty-seven thousand, nine hundred fifty-three".