63486457 has 2 divisors, whose sum is σ = 63486458. Its totient is φ = 63486456.

The previous prime is 63486439. The next prime is 63486473. The reversal of 63486457 is 75468436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39388176 + 24098281 = 6276^2 + 4909^2 .

It is a cyclic number.

It is not a de Polignac number, because 63486457 - 2²³ = 55097849 is a prime.

It is not a weakly prime, because it can be changed into another prime (63486407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31743228 + 31743229.

It is an arithmetic number, because the mean of its divisors is an integer number (31743229).

Almost surely, 2^63486457 is an apocalyptic number.

It is an amenable number.

63486457 is a deficient number, since it is larger than the sum of its proper divisors (1).

63486457 is an equidigital number, since it uses as much as digits as its factorization.

63486457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 43.

The square root of 63486457 is about 7967.8389165444. The cubic root of 63486457 is about 398.9272443100.

The spelling of 63486457 in words is "sixty-three million, four hundred eighty-six thousand, four hundred fifty-seven".