63190997 has 2 divisors, whose sum is σ = 63190998. Its totient is φ = 63190996.

The previous prime is 63190993. The next prime is 63191027. The reversal of 63190997 is 79909136.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62188996 + 1002001 = 7886^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 63190997 - 2² = 63190993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63190991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31595498 + 31595499.

It is an arithmetic number, because the mean of its divisors is an integer number (31595499).

Almost surely, 2^63190997 is an apocalyptic number.

It is an amenable number.

63190997 is a deficient number, since it is larger than the sum of its proper divisors (1).

63190997 is an equidigital number, since it uses as much as digits as its factorization.

63190997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 63190997 is about 7949.2765079597. The cubic root of 63190997 is about 398.3074251613.

The spelling of 63190997 in words is "sixty-three million, one hundred ninety thousand, nine hundred ninety-seven".