63387577 has 16 divisors (see below), whose sum is σ = 73483200. Its totient is φ = 54039040.

The previous prime is 63387497. The next prime is 63387581. The reversal of 63387577 is 77578336.

It is not a de Polignac number, because 63387577 - 2⁷ = 63387449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63387677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77949 + ... + 78757.

It is an arithmetic number, because the mean of its divisors is an integer number (4592700).

Almost surely, 2^63387577 is an apocalyptic number.

It is an amenable number.

63387577 is a deficient number, since it is larger than the sum of its proper divisors (10095623).

63387577 is a wasteful number, since it uses less digits than its factorization.

63387577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256.

The product of its digits is 740880, while the sum is 46.

The square root of 63387577 is about 7961.6315538965. The cubic root of 63387577 is about 398.7200272935.

It can be divided in two parts, 63 and 387577, that added together give a triangular number (387640 = T₈₈₀).

The spelling of 63387577 in words is "sixty-three million, three hundred eighty-seven thousand, five hundred seventy-seven".