63477797 has 2 divisors, whose sum is σ = 63477798. Its totient is φ = 63477796.

The previous prime is 63477773. The next prime is 63477809. The reversal of 63477797 is 79777436.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59737441 + 3740356 = 7729^2 + 1934^2 .

It is a cyclic number.

It is not a de Polignac number, because 63477797 - 2²⁰ = 62429221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63477397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31738898 + 31738899.

It is an arithmetic number, because the mean of its divisors is an integer number (31738899).

Almost surely, 2^63477797 is an apocalyptic number.

It is an amenable number.

63477797 is a deficient number, since it is larger than the sum of its proper divisors (1).

63477797 is an equidigital number, since it uses as much as digits as its factorization.

63477797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555848, while the sum is 50.

The square root of 63477797 is about 7967.2954633301. The cubic root of 63477797 is about 398.9091046563.

The spelling of 63477797 in words is "sixty-three million, four hundred seventy-seven thousand, seven hundred ninety-seven".