63037993 has 2 divisors, whose sum is σ = 63037994. Its totient is φ = 63037992.

The previous prime is 63037987. The next prime is 63037999. The reversal of 63037993 is 39973036.

It is a balanced prime because it is at equal distance from previous prime (63037987) and next prime (63037999).

It can be written as a sum of positive squares in only one way, i.e., 41951529 + 21086464 = 6477^2 + 4592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63037993 is a prime.

It is a super-2 number, since 2×63037993² = 7947577122936098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63037999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31518996 + 31518997.

It is an arithmetic number, because the mean of its divisors is an integer number (31518997).

Almost surely, 2^63037993 is an apocalyptic number.

It is an amenable number.

63037993 is a deficient number, since it is larger than the sum of its proper divisors (1).

63037993 is an equidigital number, since it uses as much as digits as its factorization.

63037993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 40.

The square root of 63037993 is about 7939.6469065066. The cubic root of 63037993 is about 397.9856921870.

The spelling of 63037993 in words is "sixty-three million, thirty-seven thousand, nine hundred ninety-three".