63011873 has 2 divisors, whose sum is σ = 63011874. Its totient is φ = 63011872.

The previous prime is 63011831. The next prime is 63011887. The reversal of 63011873 is 37811036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59413264 + 3598609 = 7708^2 + 1897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63011873 is a prime.

It is a super-2 number, since 2×63011873² = 7940992277936258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (63011803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31505936 + 31505937.

It is an arithmetic number, because the mean of its divisors is an integer number (31505937).

Almost surely, 2^63011873 is an apocalyptic number.

It is an amenable number.

63011873 is a deficient number, since it is larger than the sum of its proper divisors (1).

63011873 is an equidigital number, since it uses as much as digits as its factorization.

63011873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 63011873 is about 7938.0018266564. The cubic root of 63011873 is about 397.9307156990.

Subtracting from 63011873 its sum of digits (29), we obtain a square (63011844 = 7938²).

The spelling of 63011873 in words is "sixty-three million, eleven thousand, eight hundred seventy-three".