63157799 has 2 divisors, whose sum is σ = 63157800. Its totient is φ = 63157798.

The previous prime is 63157781. The next prime is 63157811. The reversal of 63157799 is 99775136.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63157799 - 2¹² = 63153703 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63157709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31578899 + 31578900.

It is an arithmetic number, because the mean of its divisors is an integer number (31578900).

Almost surely, 2^63157799 is an apocalyptic number.

63157799 is a deficient number, since it is larger than the sum of its proper divisors (1).

63157799 is an equidigital number, since it uses as much as digits as its factorization.

63157799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 357210, while the sum is 47.

The square root of 63157799 is about 7947.1881190771. The cubic root of 63157799 is about 398.2376613931.

The spelling of 63157799 in words is "sixty-three million, one hundred fifty-seven thousand, seven hundred ninety-nine".