63494777 has 2 divisors, whose sum is σ = 63494778. Its totient is φ = 63494776.

The previous prime is 63494759. The next prime is 63494801. The reversal of 63494777 is 77749436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48664576 + 14830201 = 6976^2 + 3851^2 .

It is a cyclic number.

It is not a de Polignac number, because 63494777 - 2¹⁰ = 63493753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63494707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31747388 + 31747389.

It is an arithmetic number, because the mean of its divisors is an integer number (31747389).

Almost surely, 2^63494777 is an apocalyptic number.

It is an amenable number.

63494777 is a deficient number, since it is larger than the sum of its proper divisors (1).

63494777 is an equidigital number, since it uses as much as digits as its factorization.

63494777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 47.

The square root of 63494777 is about 7968.3609983484. The cubic root of 63494777 is about 398.9446702297.

The spelling of 63494777 in words is "sixty-three million, four hundred ninety-four thousand, seven hundred seventy-seven".